Home / 90,109.40-124,349.04-49,824.86

Finding the Fourth Proportional to 90,109.40, 124,349.04 and 49,824.86

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Solution

The fourth proportional to 90,109.40, 124,349.04 and 49,824.86 is: 68,757.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,109.40 : 124,349.04 = 49,824.86 : x
  2. Step 2: Convert to fraction form
    90,109.40/124,349.04 = 49,824.86/x
  3. Step 3: Cross multiply
    90,109.40x = 124,349.04 × 49,824.86
  4. Step 4: Simplify right side
    90,109.40x = 6,195,672,887.39
  5. Step 5: Solve for x
    x = 6,195,672,887.39/90,109.40
  6. Step 6: Final answer
    x = 68,757.24

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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.