Home / 91,238.40-136,934.40-44,531.20

Finding the Fourth Proportional to 91,238.40, 136,934.40 and 44,531.20

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Solution

The fourth proportional to 91,238.40, 136,934.40 and 44,531.20 is: 66,834.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,238.40 : 136,934.40 = 44,531.20 : x
  2. Step 2: Convert to fraction form
    91,238.40/136,934.40 = 44,531.20/x
  3. Step 3: Cross multiply
    91,238.40x = 136,934.40 × 44,531.20
  4. Step 4: Simplify right side
    91,238.40x = 6,097,853,153.28
  5. Step 5: Solve for x
    x = 6,097,853,153.28/91,238.40
  6. Step 6: Final answer
    x = 66,834.28

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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.