Home / 90,179.28-124,445.16-49,895.28

Finding the Fourth Proportional to 90,179.28, 124,445.16 and 49,895.28

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Solution

The fourth proportional to 90,179.28, 124,445.16 and 49,895.28 is: 68,854.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,179.28 : 124,445.16 = 49,895.28 : x
  2. Step 2: Convert to fraction form
    90,179.28/124,445.16 = 49,895.28/x
  3. Step 3: Cross multiply
    90,179.28x = 124,445.16 × 49,895.28
  4. Step 4: Simplify right side
    90,179.28x = 6,209,226,102.84
  5. Step 5: Solve for x
    x = 6,209,226,102.84/90,179.28
  6. Step 6: Final answer
    x = 68,854.24

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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.