Home / 82,730.46-124,095.70-57,819.16

Finding the Fourth Proportional to 82,730.46, 124,095.70 and 57,819.16

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Solution

The fourth proportional to 82,730.46, 124,095.70 and 57,819.16 is: 86,728.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,730.46 : 124,095.70 = 57,819.16 : x
  2. Step 2: Convert to fraction form
    82,730.46/124,095.70 = 57,819.16/x
  3. Step 3: Cross multiply
    82,730.46x = 124,095.70 × 57,819.16
  4. Step 4: Simplify right side
    82,730.46x = 7,175,109,133.61
  5. Step 5: Solve for x
    x = 7,175,109,133.61/82,730.46
  6. Step 6: Final answer
    x = 86,728.75

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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.