Home / 55,685.16-76,850.10-31,819.32

Finding the Fourth Proportional to 55,685.16, 76,850.10 and 31,819.32

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Solution

The fourth proportional to 55,685.16, 76,850.10 and 31,819.32 is: 43,913.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,685.16 : 76,850.10 = 31,819.32 : x
  2. Step 2: Convert to fraction form
    55,685.16/76,850.10 = 31,819.32/x
  3. Step 3: Cross multiply
    55,685.16x = 76,850.10 × 31,819.32
  4. Step 4: Simplify right side
    55,685.16x = 2,445,317,923.93
  5. Step 5: Solve for x
    x = 2,445,317,923.93/55,685.16
  6. Step 6: Final answer
    x = 43,913.28

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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.