Home / 57,158.64-78,875.12-31,663.29

Finding the Fourth Proportional to 57,158.64, 78,875.12 and 31,663.29

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Solution

The fourth proportional to 57,158.64, 78,875.12 and 31,663.29 is: 43,693.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,158.64 : 78,875.12 = 31,663.29 : x
  2. Step 2: Convert to fraction form
    57,158.64/78,875.12 = 31,663.29/x
  3. Step 3: Cross multiply
    57,158.64x = 78,875.12 × 31,663.29
  4. Step 4: Simplify right side
    57,158.64x = 2,497,445,640.03
  5. Step 5: Solve for x
    x = 2,497,445,640.03/57,158.64
  6. Step 6: Final answer
    x = 43,693.23

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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.