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Finding the Fourth Proportional to 42,043.92, 63,064.88 and 10,454.07

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Solution

The fourth proportional to 42,043.92, 63,064.88 and 10,454.07 is: 15,680.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,043.92 : 63,064.88 = 10,454.07 : x
  2. Step 2: Convert to fraction form
    42,043.92/63,064.88 = 10,454.07/x
  3. Step 3: Cross multiply
    42,043.92x = 63,064.88 × 10,454.07
  4. Step 4: Simplify right side
    42,043.92x = 659,284,670.06
  5. Step 5: Solve for x
    x = 659,284,670.06/42,043.92
  6. Step 6: Final answer
    x = 15,680.86

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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.