Home / 90,888.59-136,269.65-40,260.14

Finding the Fourth Proportional to 90,888.59, 136,269.65 and 40,260.14

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Solution

The fourth proportional to 90,888.59, 136,269.65 and 40,260.14 is: 60,362.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,888.59 : 136,269.65 = 40,260.14 : x
  2. Step 2: Convert to fraction form
    90,888.59/136,269.65 = 40,260.14/x
  3. Step 3: Cross multiply
    90,888.59x = 136,269.65 × 40,260.14
  4. Step 4: Simplify right side
    90,888.59x = 5,486,234,304.10
  5. Step 5: Solve for x
    x = 5,486,234,304.10/90,888.59
  6. Step 6: Final answer
    x = 60,362.19

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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.