Home / 42,500.68-63,749.70-10,909.46

Finding the Fourth Proportional to 42,500.68, 63,749.70 and 10,909.46

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Solution

The fourth proportional to 42,500.68, 63,749.70 and 10,909.46 is: 16,363.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,500.68 : 63,749.70 = 10,909.46 : x
  2. Step 2: Convert to fraction form
    42,500.68/63,749.70 = 10,909.46/x
  3. Step 3: Cross multiply
    42,500.68x = 63,749.70 × 10,909.46
  4. Step 4: Simplify right side
    42,500.68x = 695,474,961.54
  5. Step 5: Solve for x
    x = 695,474,961.54/42,500.68
  6. Step 6: Final answer
    x = 16,363.86

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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.