Home / 89,435.89-134,070.45-30,230.20

Finding the Fourth Proportional to 89,435.89, 134,070.45 and 30,230.20

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Solution

The fourth proportional to 89,435.89, 134,070.45 and 30,230.20 is: 45,317.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,435.89 : 134,070.45 = 30,230.20 : x
  2. Step 2: Convert to fraction form
    89,435.89/134,070.45 = 30,230.20/x
  3. Step 3: Cross multiply
    89,435.89x = 134,070.45 × 30,230.20
  4. Step 4: Simplify right side
    89,435.89x = 4,052,976,517.59
  5. Step 5: Solve for x
    x = 4,052,976,517.59/89,435.89
  6. Step 6: Final answer
    x = 45,317.12

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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.