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Finding the Fourth Proportional to 89,341.88, 123,295.81 and 53,531.12

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Solution

The fourth proportional to 89,341.88, 123,295.81 and 53,531.12 is: 73,875.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,341.88 : 123,295.81 = 53,531.12 : x
  2. Step 2: Convert to fraction form
    89,341.88/123,295.81 = 53,531.12/x
  3. Step 3: Cross multiply
    89,341.88x = 123,295.81 × 53,531.12
  4. Step 4: Simplify right side
    89,341.88x = 6,600,162,050.30
  5. Step 5: Solve for x
    x = 6,600,162,050.30/89,341.88
  6. Step 6: Final answer
    x = 73,875.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.