Home / 87,788.89-121,148.89-47,503.07

Finding the Fourth Proportional to 87,788.89, 121,148.89 and 47,503.07

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Solution

The fourth proportional to 87,788.89, 121,148.89 and 47,503.07 is: 65,554.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,788.89 : 121,148.89 = 47,503.07 : x
  2. Step 2: Convert to fraction form
    87,788.89/121,148.89 = 47,503.07/x
  3. Step 3: Cross multiply
    87,788.89x = 121,148.89 × 47,503.07
  4. Step 4: Simplify right side
    87,788.89x = 5,754,944,746.96
  5. Step 5: Solve for x
    x = 5,754,944,746.96/87,788.89
  6. Step 6: Final answer
    x = 65,554.36

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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.