Home / 99,541.68-137,343.96-56,511.84

Finding the Fourth Proportional to 99,541.68, 137,343.96 and 56,511.84

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Solution

The fourth proportional to 99,541.68, 137,343.96 and 56,511.84 is: 77,972.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,541.68 : 137,343.96 = 56,511.84 : x
  2. Step 2: Convert to fraction form
    99,541.68/137,343.96 = 56,511.84/x
  3. Step 3: Cross multiply
    99,541.68x = 137,343.96 × 56,511.84
  4. Step 4: Simplify right side
    99,541.68x = 7,761,559,892.49
  5. Step 5: Solve for x
    x = 7,761,559,892.49/99,541.68
  6. Step 6: Final answer
    x = 77,972.96

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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.