Home / 81,445,933.56-112,431,619.26-48,416,875.32

Finding the Fourth Proportional to 81,445,933.56, 112,431,619.26 and 48,416,875.32

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Solution

The fourth proportional to 81,445,933.56, 112,431,619.26 and 48,416,875.32 is: 66,836,826.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,445,933.56 : 112,431,619.26 = 48,416,875.32 : x
  2. Step 2: Convert to fraction form
    81,445,933.56/112,431,619.26 = 48,416,875.32/x
  3. Step 3: Cross multiply
    81,445,933.56x = 112,431,619.26 × 48,416,875.32
  4. Step 4: Simplify right side
    81,445,933.56x = 5,443,587,691,737,131
  5. Step 5: Solve for x
    x = 5,443,587,691,737,131/81,445,933.56
  6. Step 6: Final answer
    x = 66,836,826.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.