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Finding the Fourth Proportional to 87,999.53, 132,009.53 and 31,866.08

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Solution

The fourth proportional to 87,999.53, 132,009.53 and 31,866.08 is: 47,802.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,999.53 : 132,009.53 = 31,866.08 : x
  2. Step 2: Convert to fraction form
    87,999.53/132,009.53 = 31,866.08/x
  3. Step 3: Cross multiply
    87,999.53x = 132,009.53 × 31,866.08
  4. Step 4: Simplify right side
    87,999.53x = 4,206,625,424.36
  5. Step 5: Solve for x
    x = 4,206,625,424.36/87,999.53
  6. Step 6: Final answer
    x = 47,802.82

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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.