Home / 83,718.66-115,562.08-55,433.46

Finding the Fourth Proportional to 83,718.66, 115,562.08 and 55,433.46

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Solution

The fourth proportional to 83,718.66, 115,562.08 and 55,433.46 is: 76,518.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,718.66 : 115,562.08 = 55,433.46 : x
  2. Step 2: Convert to fraction form
    83,718.66/115,562.08 = 55,433.46/x
  3. Step 3: Cross multiply
    83,718.66x = 115,562.08 × 55,433.46
  4. Step 4: Simplify right side
    83,718.66x = 6,406,005,939.20
  5. Step 5: Solve for x
    x = 6,406,005,939.20/83,718.66
  6. Step 6: Final answer
    x = 76,518.26

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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.