Home / 83,616.39-115,390.02-45,374.96

Finding the Fourth Proportional to 83,616.39, 115,390.02 and 45,374.96

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Solution

The fourth proportional to 83,616.39, 115,390.02 and 45,374.96 is: 62,617.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,616.39 : 115,390.02 = 45,374.96 : x
  2. Step 2: Convert to fraction form
    83,616.39/115,390.02 = 45,374.96/x
  3. Step 3: Cross multiply
    83,616.39x = 115,390.02 × 45,374.96
  4. Step 4: Simplify right side
    83,616.39x = 5,235,817,541.90
  5. Step 5: Solve for x
    x = 5,235,817,541.90/83,616.39
  6. Step 6: Final answer
    x = 62,617.12

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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.