Home / 67,432.30-101,039.10-42,427.60

Finding the Fourth Proportional to 67,432.30, 101,039.10 and 42,427.60

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Solution

The fourth proportional to 67,432.30, 101,039.10 and 42,427.60 is: 63,572.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,432.30 : 101,039.10 = 42,427.60 : x
  2. Step 2: Convert to fraction form
    67,432.30/101,039.10 = 42,427.60/x
  3. Step 3: Cross multiply
    67,432.30x = 101,039.10 × 42,427.60
  4. Step 4: Simplify right side
    67,432.30x = 4,286,846,519.16
  5. Step 5: Solve for x
    x = 4,286,846,519.16/67,432.30
  6. Step 6: Final answer
    x = 63,572.60

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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.