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Finding the Fourth Proportional to 63,153.95, 94,710.42 and 21,022.72

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Solution

The fourth proportional to 63,153.95, 94,710.42 and 21,022.72 is: 31,527.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,153.95 : 94,710.42 = 21,022.72 : x
  2. Step 2: Convert to fraction form
    63,153.95/94,710.42 = 21,022.72/x
  3. Step 3: Cross multiply
    63,153.95x = 94,710.42 × 21,022.72
  4. Step 4: Simplify right side
    63,153.95x = 1,991,070,640.74
  5. Step 5: Solve for x
    x = 1,991,070,640.74/63,153.95
  6. Step 6: Final answer
    x = 31,527.25

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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.