Home / 84,724.66-126,998.31-28,545.36

Finding the Fourth Proportional to 84,724.66, 126,998.31 and 28,545.36

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Solution

The fourth proportional to 84,724.66, 126,998.31 and 28,545.36 is: 42,788.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,724.66 : 126,998.31 = 28,545.36 : x
  2. Step 2: Convert to fraction form
    84,724.66/126,998.31 = 28,545.36/x
  3. Step 3: Cross multiply
    84,724.66x = 126,998.31 × 28,545.36
  4. Step 4: Simplify right side
    84,724.66x = 3,625,212,478.34
  5. Step 5: Solve for x
    x = 3,625,212,478.34/84,724.66
  6. Step 6: Final answer
    x = 42,788.16

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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.