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Finding the Fourth Proportional to 90,182.16, 124,448.16 and 49,895.76

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Solution

The fourth proportional to 90,182.16, 124,448.16 and 49,895.76 is: 68,854.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,182.16 : 124,448.16 = 49,895.76 : x
  2. Step 2: Convert to fraction form
    90,182.16/124,448.16 = 49,895.76/x
  3. Step 3: Cross multiply
    90,182.16x = 124,448.16 × 49,895.76
  4. Step 4: Simplify right side
    90,182.16x = 6,209,435,523.80
  5. Step 5: Solve for x
    x = 6,209,435,523.80/90,182.16
  6. Step 6: Final answer
    x = 68,854.37

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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.