Home / 90,917.68-136,397.97-28,588.18

Finding the Fourth Proportional to 90,917.68, 136,397.97 and 28,588.18

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Solution

The fourth proportional to 90,917.68, 136,397.97 and 28,588.18 is: 42,889.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,917.68 : 136,397.97 = 28,588.18 : x
  2. Step 2: Convert to fraction form
    90,917.68/136,397.97 = 28,588.18/x
  3. Step 3: Cross multiply
    90,917.68x = 136,397.97 × 28,588.18
  4. Step 4: Simplify right side
    90,917.68x = 3,899,369,036.00
  5. Step 5: Solve for x
    x = 3,899,369,036.00/90,917.68
  6. Step 6: Final answer
    x = 42,889.01

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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.