Home / 90,025.85-124,225.07-49,737.21

Finding the Fourth Proportional to 90,025.85, 124,225.07 and 49,737.21

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Solution

The fourth proportional to 90,025.85, 124,225.07 and 49,737.21 is: 68,631.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,025.85 : 124,225.07 = 49,737.21 : x
  2. Step 2: Convert to fraction form
    90,025.85/124,225.07 = 49,737.21/x
  3. Step 3: Cross multiply
    90,025.85x = 124,225.07 × 49,737.21
  4. Step 4: Simplify right side
    90,025.85x = 6,178,608,393.85
  5. Step 5: Solve for x
    x = 6,178,608,393.85/90,025.85
  6. Step 6: Final answer
    x = 68,631.49

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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.