Home / 90,018.95-124,225.04-49,729.87

Finding the Fourth Proportional to 90,018.95, 124,225.04 and 49,729.87

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Solution

The fourth proportional to 90,018.95, 124,225.04 and 49,729.87 is: 68,626.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,018.95 : 124,225.04 = 49,729.87 : x
  2. Step 2: Convert to fraction form
    90,018.95/124,225.04 = 49,729.87/x
  3. Step 3: Cross multiply
    90,018.95x = 124,225.04 × 49,729.87
  4. Step 4: Simplify right side
    90,018.95x = 6,177,694,220.17
  5. Step 5: Solve for x
    x = 6,177,694,220.17/90,018.95
  6. Step 6: Final answer
    x = 68,626.60

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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.