Home / 90,368.67-135,585.27-54,902.34

Finding the Fourth Proportional to 90,368.67, 135,585.27 and 54,902.34

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Solution

The fourth proportional to 90,368.67, 135,585.27 and 54,902.34 is: 82,373.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,368.67 : 135,585.27 = 54,902.34 : x
  2. Step 2: Convert to fraction form
    90,368.67/135,585.27 = 54,902.34/x
  3. Step 3: Cross multiply
    90,368.67x = 135,585.27 × 54,902.34
  4. Step 4: Simplify right side
    90,368.67x = 7,443,948,592.53
  5. Step 5: Solve for x
    x = 7,443,948,592.53/90,368.67
  6. Step 6: Final answer
    x = 82,373.11

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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.