Home / 83,889.57-115,760.66-49,428.93

Finding the Fourth Proportional to 83,889.57, 115,760.66 and 49,428.93

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Solution

The fourth proportional to 83,889.57, 115,760.66 and 49,428.93 is: 68,207.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,889.57 : 115,760.66 = 49,428.93 : x
  2. Step 2: Convert to fraction form
    83,889.57/115,760.66 = 49,428.93/x
  3. Step 3: Cross multiply
    83,889.57x = 115,760.66 × 49,428.93
  4. Step 4: Simplify right side
    83,889.57x = 5,721,925,312.75
  5. Step 5: Solve for x
    x = 5,721,925,312.75/83,889.57
  6. Step 6: Final answer
    x = 68,207.83

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1.5x scale

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.