Home / 42,750.60-64,125.90-32,909.10

Finding the Fourth Proportional to 42,750.60, 64,125.90 and 32,909.10

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Solution

The fourth proportional to 42,750.60, 64,125.90 and 32,909.10 is: 49,363.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,750.60 : 64,125.90 = 32,909.10 : x
  2. Step 2: Convert to fraction form
    42,750.60/64,125.90 = 32,909.10/x
  3. Step 3: Cross multiply
    42,750.60x = 64,125.90 × 32,909.10
  4. Step 4: Simplify right side
    42,750.60x = 2,110,325,655.69
  5. Step 5: Solve for x
    x = 2,110,325,655.69/42,750.60
  6. Step 6: Final answer
    x = 49,363.65

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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.