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Finding the Fourth Proportional to 42,153.44, 63,209.10 and 14,063.72

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Solution

The fourth proportional to 42,153.44, 63,209.10 and 14,063.72 is: 21,088.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,153.44 : 63,209.10 = 14,063.72 : x
  2. Step 2: Convert to fraction form
    42,153.44/63,209.10 = 14,063.72/x
  3. Step 3: Cross multiply
    42,153.44x = 63,209.10 × 14,063.72
  4. Step 4: Simplify right side
    42,153.44x = 888,955,083.85
  5. Step 5: Solve for x
    x = 888,955,083.85/42,153.44
  6. Step 6: Final answer
    x = 21,088.55

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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.