Home / 61,306.13-91,959.40-16,931.90

Finding the Fourth Proportional to 61,306.13, 91,959.40 and 16,931.90

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Solution

The fourth proportional to 61,306.13, 91,959.40 and 16,931.90 is: 25,397.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,306.13 : 91,959.40 = 16,931.90 : x
  2. Step 2: Convert to fraction form
    61,306.13/91,959.40 = 16,931.90/x
  3. Step 3: Cross multiply
    61,306.13x = 91,959.40 × 16,931.90
  4. Step 4: Simplify right side
    61,306.13x = 1,557,047,364.86
  5. Step 5: Solve for x
    x = 1,557,047,364.86/61,306.13
  6. Step 6: Final answer
    x = 25,397.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.