Home / 67,432.40-101,136.45-42,427.70

Finding the Fourth Proportional to 67,432.40, 101,136.45 and 42,427.70

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Solution

The fourth proportional to 67,432.40, 101,136.45 and 42,427.70 is: 63,633.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,432.40 : 101,136.45 = 42,427.70 : x
  2. Step 2: Convert to fraction form
    67,432.40/101,136.45 = 42,427.70/x
  3. Step 3: Cross multiply
    67,432.40x = 101,136.45 × 42,427.70
  4. Step 4: Simplify right side
    67,432.40x = 4,290,986,959.67
  5. Step 5: Solve for x
    x = 4,290,986,959.67/67,432.40
  6. Step 6: Final answer
    x = 63,633.91

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1.5x scale

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.