Home / 67,000.20-92,468.84-38,700.40

Finding the Fourth Proportional to 67,000.20, 92,468.84 and 38,700.40

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Solution

The fourth proportional to 67,000.20, 92,468.84 and 38,700.40 is: 53,411.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,000.20 : 92,468.84 = 38,700.40 : x
  2. Step 2: Convert to fraction form
    67,000.20/92,468.84 = 38,700.40/x
  3. Step 3: Cross multiply
    67,000.20x = 92,468.84 × 38,700.40
  4. Step 4: Simplify right side
    67,000.20x = 3,578,581,095.54
  5. Step 5: Solve for x
    x = 3,578,581,095.54/67,000.20
  6. Step 6: Final answer
    x = 53,411.50

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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.