Home / 90,531.40-135,744.48-60,579.86

Finding the Fourth Proportional to 90,531.40, 135,744.48 and 60,579.86

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Solution

The fourth proportional to 90,531.40, 135,744.48 and 60,579.86 is: 90,834.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,531.40 : 135,744.48 = 60,579.86 : x
  2. Step 2: Convert to fraction form
    90,531.40/135,744.48 = 60,579.86/x
  3. Step 3: Cross multiply
    90,531.40x = 135,744.48 × 60,579.86
  4. Step 4: Simplify right side
    90,531.40x = 8,223,381,594.17
  5. Step 5: Solve for x
    x = 8,223,381,594.17/90,531.40
  6. Step 6: Final answer
    x = 90,834.58

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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.