Home / 99,731.55-137,612.61-59,444.58

Finding the Fourth Proportional to 99,731.55, 137,612.61 and 59,444.58

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Solution

The fourth proportional to 99,731.55, 137,612.61 and 59,444.58 is: 82,023.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,731.55 : 137,612.61 = 59,444.58 : x
  2. Step 2: Convert to fraction form
    99,731.55/137,612.61 = 59,444.58/x
  3. Step 3: Cross multiply
    99,731.55x = 137,612.61 × 59,444.58
  4. Step 4: Simplify right side
    99,731.55x = 8,180,323,804.15
  5. Step 5: Solve for x
    x = 8,180,323,804.15/99,731.55
  6. Step 6: Final answer
    x = 82,023.43

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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.