Home / 90,839.13-136,263.55-28,514.49

Finding the Fourth Proportional to 90,839.13, 136,263.55 and 28,514.49

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Solution

The fourth proportional to 90,839.13, 136,263.55 and 28,514.49 is: 42,773.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,839.13 : 136,263.55 = 28,514.49 : x
  2. Step 2: Convert to fraction form
    90,839.13/136,263.55 = 28,514.49/x
  3. Step 3: Cross multiply
    90,839.13x = 136,263.55 × 28,514.49
  4. Step 4: Simplify right side
    90,839.13x = 3,885,485,633.84
  5. Step 5: Solve for x
    x = 3,885,485,633.84/90,839.13
  6. Step 6: Final answer
    x = 42,773.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.