Home / 90,147.88-124,400.28-49,311.34

Finding the Fourth Proportional to 90,147.88, 124,400.28 and 49,311.34

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Solution

The fourth proportional to 90,147.88, 124,400.28 and 49,311.34 is: 68,047.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,147.88 : 124,400.28 = 49,311.34 : x
  2. Step 2: Convert to fraction form
    90,147.88/124,400.28 = 49,311.34/x
  3. Step 3: Cross multiply
    90,147.88x = 124,400.28 × 49,311.34
  4. Step 4: Simplify right side
    90,147.88x = 6,134,344,503.18
  5. Step 5: Solve for x
    x = 6,134,344,503.18/90,147.88
  6. Step 6: Final answer
    x = 68,047.57

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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.