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Finding the Fourth Proportional to 88,853.76, 133,125.12 and 51,840

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Solution

The fourth proportional to 88,853.76, 133,125.12 and 51,840 is: 77,669.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,853.76 : 133,125.12 = 51,840 : x
  2. Step 2: Convert to fraction form
    88,853.76/133,125.12 = 51,840/x
  3. Step 3: Cross multiply
    88,853.76x = 133,125.12 × 51,840
  4. Step 4: Simplify right side
    88,853.76x = 6,901,206,220.80
  5. Step 5: Solve for x
    x = 6,901,206,220.80/88,853.76
  6. Step 6: Final answer
    x = 77,669.26

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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.