Home / 90,207.12-135,311.25-23,646.67

Finding the Fourth Proportional to 90,207.12, 135,311.25 and 23,646.67

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Solution

The fourth proportional to 90,207.12, 135,311.25 and 23,646.67 is: 35,470.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,207.12 : 135,311.25 = 23,646.67 : x
  2. Step 2: Convert to fraction form
    90,207.12/135,311.25 = 23,646.67/x
  3. Step 3: Cross multiply
    90,207.12x = 135,311.25 × 23,646.67
  4. Step 4: Simplify right side
    90,207.12x = 3,199,660,476.04
  5. Step 5: Solve for x
    x = 3,199,660,476.04/90,207.12
  6. Step 6: Final answer
    x = 35,470.15

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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.