Home / 60,287.39-90,435.18-20,847.58

Finding the Fourth Proportional to 60,287.39, 90,435.18 and 20,847.58

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Solution

The fourth proportional to 60,287.39, 90,435.18 and 20,847.58 is: 31,272.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,287.39 : 90,435.18 = 20,847.58 : x
  2. Step 2: Convert to fraction form
    60,287.39/90,435.18 = 20,847.58/x
  3. Step 3: Cross multiply
    60,287.39x = 90,435.18 × 20,847.58
  4. Step 4: Simplify right side
    60,287.39x = 1,885,354,501.95
  5. Step 5: Solve for x
    x = 1,885,354,501.95/60,287.39
  6. Step 6: Final answer
    x = 31,272.78

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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.