Home / 90,351.22-135,545.01-31,189.18

Finding the Fourth Proportional to 90,351.22, 135,545.01 and 31,189.18

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Solution

The fourth proportional to 90,351.22, 135,545.01 and 31,189.18 is: 46,790.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,351.22 : 135,545.01 = 31,189.18 : x
  2. Step 2: Convert to fraction form
    90,351.22/135,545.01 = 31,189.18/x
  3. Step 3: Cross multiply
    90,351.22x = 135,545.01 × 31,189.18
  4. Step 4: Simplify right side
    90,351.22x = 4,227,537,714.99
  5. Step 5: Solve for x
    x = 4,227,537,714.99/90,351.22
  6. Step 6: Final answer
    x = 46,790.05

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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.