Home / 99,664.76-137,531.34-57,219.32

Finding the Fourth Proportional to 99,664.76, 137,531.34 and 57,219.32

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Solution

The fourth proportional to 99,664.76, 137,531.34 and 57,219.32 is: 78,959.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,664.76 : 137,531.34 = 57,219.32 : x
  2. Step 2: Convert to fraction form
    99,664.76/137,531.34 = 57,219.32/x
  3. Step 3: Cross multiply
    99,664.76x = 137,531.34 × 57,219.32
  4. Step 4: Simplify right side
    99,664.76x = 7,869,449,753.49
  5. Step 5: Solve for x
    x = 7,869,449,753.49/99,664.76
  6. Step 6: Final answer
    x = 78,959.20

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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.