Home / 90,948.56-136,377.89-54,962.11

Finding the Fourth Proportional to 90,948.56, 136,377.89 and 54,962.11

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Solution

The fourth proportional to 90,948.56, 136,377.89 and 54,962.11 is: 82,415.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,948.56 : 136,377.89 = 54,962.11 : x
  2. Step 2: Convert to fraction form
    90,948.56/136,377.89 = 54,962.11/x
  3. Step 3: Cross multiply
    90,948.56x = 136,377.89 × 54,962.11
  4. Step 4: Simplify right side
    90,948.56x = 7,495,615,635.05
  5. Step 5: Solve for x
    x = 7,495,615,635.05/90,948.56
  6. Step 6: Final answer
    x = 82,415.99

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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.