Home / 57,160.39-78,877.53-31,665.04

Finding the Fourth Proportional to 57,160.39, 78,877.53 and 31,665.04

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Solution

The fourth proportional to 57,160.39, 78,877.53 and 31,665.04 is: 43,695.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,160.39 : 78,877.53 = 31,665.04 : x
  2. Step 2: Convert to fraction form
    57,160.39/78,877.53 = 31,665.04/x
  3. Step 3: Cross multiply
    57,160.39x = 78,877.53 × 31,665.04
  4. Step 4: Simplify right side
    57,160.39x = 2,497,660,142.55
  5. Step 5: Solve for x
    x = 2,497,660,142.55/57,160.39
  6. Step 6: Final answer
    x = 43,695.65

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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.