Home / 82,730.48-124,071.06-30,127.66

Finding the Fourth Proportional to 82,730.48, 124,071.06 and 30,127.66

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Solution

The fourth proportional to 82,730.48, 124,071.06 and 30,127.66 is: 45,182.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,730.48 : 124,071.06 = 30,127.66 : x
  2. Step 2: Convert to fraction form
    82,730.48/124,071.06 = 30,127.66/x
  3. Step 3: Cross multiply
    82,730.48x = 124,071.06 × 30,127.66
  4. Step 4: Simplify right side
    82,730.48x = 3,737,970,560.88
  5. Step 5: Solve for x
    x = 3,737,970,560.88/82,730.48
  6. Step 6: Final answer
    x = 45,182.51

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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.