Home / 67,966.20-93,791.40-38,895.30

Finding the Fourth Proportional to 67,966.20, 93,791.40 and 38,895.30

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Solution

The fourth proportional to 67,966.20, 93,791.40 and 38,895.30 is: 53,674.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,966.20 : 93,791.40 = 38,895.30 : x
  2. Step 2: Convert to fraction form
    67,966.20/93,791.40 = 38,895.30/x
  3. Step 3: Cross multiply
    67,966.20x = 93,791.40 × 38,895.30
  4. Step 4: Simplify right side
    67,966.20x = 3,648,044,640.42
  5. Step 5: Solve for x
    x = 3,648,044,640.42/67,966.20
  6. Step 6: Final answer
    x = 53,674.39

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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.