Home / 99,664.43-137,534.38-54,342.50

Finding the Fourth Proportional to 99,664.43, 137,534.38 and 54,342.50

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Solution

The fourth proportional to 99,664.43, 137,534.38 and 54,342.50 is: 74,991.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,664.43 : 137,534.38 = 54,342.50 : x
  2. Step 2: Convert to fraction form
    99,664.43/137,534.38 = 54,342.50/x
  3. Step 3: Cross multiply
    99,664.43x = 137,534.38 × 54,342.50
  4. Step 4: Simplify right side
    99,664.43x = 7,473,962,253.13
  5. Step 5: Solve for x
    x = 7,473,962,253.13/99,664.43
  6. Step 6: Final answer
    x = 74,991.27

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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.