Home / 84,547.28-126,783.56-25,371.62

Finding the Fourth Proportional to 84,547.28, 126,783.56 and 25,371.62

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Solution

The fourth proportional to 84,547.28, 126,783.56 and 25,371.62 is: 38,046.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,547.28 : 126,783.56 = 25,371.62 : x
  2. Step 2: Convert to fraction form
    84,547.28/126,783.56 = 25,371.62/x
  3. Step 3: Cross multiply
    84,547.28x = 126,783.56 × 25,371.62
  4. Step 4: Simplify right side
    84,547.28x = 3,216,703,545.79
  5. Step 5: Solve for x
    x = 3,216,703,545.79/84,547.28
  6. Step 6: Final answer
    x = 38,046.21

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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.