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Finding the Fourth Proportional to 42,000.40, 60,472.80 and 42,000.40

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Solution

The fourth proportional to 42,000.40, 60,472.80 and 42,000.40 is: 60,472.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,000.40 : 60,472.80 = 42,000.40 : x
  2. Step 2: Convert to fraction form
    42,000.40/60,472.80 = 42,000.40/x
  3. Step 3: Cross multiply
    42,000.40x = 60,472.80 × 42,000.40
  4. Step 4: Simplify right side
    42,000.40x = 2,539,881,789.12
  5. Step 5: Solve for x
    x = 2,539,881,789.12/42,000.40
  6. Step 6: Final answer
    x = 60,472.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.44) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.