Home / 83,644.66-115,427.04-45,402.40

Finding the Fourth Proportional to 83,644.66, 115,427.04 and 45,402.40

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Solution

The fourth proportional to 83,644.66, 115,427.04 and 45,402.40 is: 62,653.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,644.66 : 115,427.04 = 45,402.40 : x
  2. Step 2: Convert to fraction form
    83,644.66/115,427.04 = 45,402.40/x
  3. Step 3: Cross multiply
    83,644.66x = 115,427.04 × 45,402.40
  4. Step 4: Simplify right side
    83,644.66x = 5,240,664,640.90
  5. Step 5: Solve for x
    x = 5,240,664,640.90/83,644.66
  6. Step 6: Final answer
    x = 62,653.91

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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.