Home / 90,220.08-135,223.98-36,879.14

Finding the Fourth Proportional to 90,220.08, 135,223.98 and 36,879.14

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Solution

The fourth proportional to 90,220.08, 135,223.98 and 36,879.14 is: 55,275.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,220.08 : 135,223.98 = 36,879.14 : x
  2. Step 2: Convert to fraction form
    90,220.08/135,223.98 = 36,879.14/x
  3. Step 3: Cross multiply
    90,220.08x = 135,223.98 × 36,879.14
  4. Step 4: Simplify right side
    90,220.08x = 4,986,944,089.78
  5. Step 5: Solve for x
    x = 4,986,944,089.78/90,220.08
  6. Step 6: Final answer
    x = 55,275.32

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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.