Home / 57,013.38-78,671.65-31,516.31

Finding the Fourth Proportional to 57,013.38, 78,671.65 and 31,516.31

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Solution

The fourth proportional to 57,013.38, 78,671.65 and 31,516.31 is: 43,488.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,013.38 : 78,671.65 = 31,516.31 : x
  2. Step 2: Convert to fraction form
    57,013.38/78,671.65 = 31,516.31/x
  3. Step 3: Cross multiply
    57,013.38x = 78,671.65 × 31,516.31
  4. Step 4: Simplify right side
    57,013.38x = 2,479,440,109.61
  5. Step 5: Solve for x
    x = 2,479,440,109.61/57,013.38
  6. Step 6: Final answer
    x = 43,488.74

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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.