Home / 90,164.88-124,385.64-58,344.04

Finding the Fourth Proportional to 90,164.88, 124,385.64 and 58,344.04

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Solution

The fourth proportional to 90,164.88, 124,385.64 and 58,344.04 is: 80,487.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,164.88 : 124,385.64 = 58,344.04 : x
  2. Step 2: Convert to fraction form
    90,164.88/124,385.64 = 58,344.04/x
  3. Step 3: Cross multiply
    90,164.88x = 124,385.64 × 58,344.04
  4. Step 4: Simplify right side
    90,164.88x = 7,257,160,755.59
  5. Step 5: Solve for x
    x = 7,257,160,755.59/90,164.88
  6. Step 6: Final answer
    x = 80,487.67

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1.5x scale

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.