Home / 78,864.46-118,177-57,818.52

Finding the Fourth Proportional to 78,864.46, 118,177 and 57,818.52

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Solution

The fourth proportional to 78,864.46, 118,177 and 57,818.52 is: 86,640.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,864.46 : 118,177 = 57,818.52 : x
  2. Step 2: Convert to fraction form
    78,864.46/118,177 = 57,818.52/x
  3. Step 3: Cross multiply
    78,864.46x = 118,177 × 57,818.52
  4. Step 4: Simplify right side
    78,864.46x = 6,832,819,238.04
  5. Step 5: Solve for x
    x = 6,832,819,238.04/78,864.46
  6. Step 6: Final answer
    x = 86,640.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.