Home / 90,704.10-125,120.57-54,395.87

Finding the Fourth Proportional to 90,704.10, 125,120.57 and 54,395.87

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Solution

The fourth proportional to 90,704.10, 125,120.57 and 54,395.87 is: 75,035.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,704.10 : 125,120.57 = 54,395.87 : x
  2. Step 2: Convert to fraction form
    90,704.10/125,120.57 = 54,395.87/x
  3. Step 3: Cross multiply
    90,704.10x = 125,120.57 × 54,395.87
  4. Step 4: Simplify right side
    90,704.10x = 6,806,041,362.46
  5. Step 5: Solve for x
    x = 6,806,041,362.46/90,704.10
  6. Step 6: Final answer
    x = 75,035.65

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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.