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Finding the Fourth Proportional to 63,128.73, 94,706.05 and 18,751.53

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Solution

The fourth proportional to 63,128.73, 94,706.05 and 18,751.53 is: 28,131.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,128.73 : 94,706.05 = 18,751.53 : x
  2. Step 2: Convert to fraction form
    63,128.73/94,706.05 = 18,751.53/x
  3. Step 3: Cross multiply
    63,128.73x = 94,706.05 × 18,751.53
  4. Step 4: Simplify right side
    63,128.73x = 1,775,883,337.76
  5. Step 5: Solve for x
    x = 1,775,883,337.76/63,128.73
  6. Step 6: Final answer
    x = 28,131.14

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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.