Home / 90,331.47-124,587.86-54,484.11

Finding the Fourth Proportional to 90,331.47, 124,587.86 and 54,484.11

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Solution

The fourth proportional to 90,331.47, 124,587.86 and 54,484.11 is: 75,146.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,331.47 : 124,587.86 = 54,484.11 : x
  2. Step 2: Convert to fraction form
    90,331.47/124,587.86 = 54,484.11/x
  3. Step 3: Cross multiply
    90,331.47x = 124,587.86 × 54,484.11
  4. Step 4: Simplify right side
    90,331.47x = 6,788,058,396.48
  5. Step 5: Solve for x
    x = 6,788,058,396.48/90,331.47
  6. Step 6: Final answer
    x = 75,146.11

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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.