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Finding the Fourth Proportional to 45,500.10, 63,000.09 and 42,000.90

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Solution

The fourth proportional to 45,500.10, 63,000.09 and 42,000.90 is: 58,155.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,500.10 : 63,000.09 = 42,000.90 : x
  2. Step 2: Convert to fraction form
    45,500.10/63,000.09 = 42,000.90/x
  3. Step 3: Cross multiply
    45,500.10x = 63,000.09 × 42,000.90
  4. Step 4: Simplify right side
    45,500.10x = 2,646,060,480.08
  5. Step 5: Solve for x
    x = 2,646,060,480.08/45,500.10
  6. Step 6: Final answer
    x = 58,155.05

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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.