Home / 67,070.11-100,572.72-38,998.30

Finding the Fourth Proportional to 67,070.11, 100,572.72 and 38,998.30

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Solution

The fourth proportional to 67,070.11, 100,572.72 and 38,998.30 is: 58,478.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,070.11 : 100,572.72 = 38,998.30 : x
  2. Step 2: Convert to fraction form
    67,070.11/100,572.72 = 38,998.30/x
  3. Step 3: Cross multiply
    67,070.11x = 100,572.72 × 38,998.30
  4. Step 4: Simplify right side
    67,070.11x = 3,922,165,106.38
  5. Step 5: Solve for x
    x = 3,922,165,106.38/67,070.11
  6. Step 6: Final answer
    x = 58,478.58

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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.