Home / 45,000.38-67,500.58-13,835.90

Finding the Fourth Proportional to 45,000.38, 67,500.58 and 13,835.90

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Solution

The fourth proportional to 45,000.38, 67,500.58 and 13,835.90 is: 20,753.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,000.38 : 67,500.58 = 13,835.90 : x
  2. Step 2: Convert to fraction form
    45,000.38/67,500.58 = 13,835.90/x
  3. Step 3: Cross multiply
    45,000.38x = 67,500.58 × 13,835.90
  4. Step 4: Simplify right side
    45,000.38x = 933,931,274.82
  5. Step 5: Solve for x
    x = 933,931,274.82/45,000.38
  6. Step 6: Final answer
    x = 20,753.85

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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.