Home / 81,445.96-112,384.02-45,633.16

Finding the Fourth Proportional to 81,445.96, 112,384.02 and 45,633.16

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Solution

The fourth proportional to 81,445.96, 112,384.02 and 45,633.16 is: 62,967.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,445.96 : 112,384.02 = 45,633.16 : x
  2. Step 2: Convert to fraction form
    81,445.96/112,384.02 = 45,633.16/x
  3. Step 3: Cross multiply
    81,445.96x = 112,384.02 × 45,633.16
  4. Step 4: Simplify right side
    81,445.96x = 5,128,437,966.10
  5. Step 5: Solve for x
    x = 5,128,437,966.10/81,445.96
  6. Step 6: Final answer
    x = 62,967.37

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1.5x scale

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.