Home / 89,519.12-134,194.80-30,313.40

Finding the Fourth Proportional to 89,519.12, 134,194.80 and 30,313.40

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Solution

The fourth proportional to 89,519.12, 134,194.80 and 30,313.40 is: 45,441.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,519.12 : 134,194.80 = 30,313.40 : x
  2. Step 2: Convert to fraction form
    89,519.12/134,194.80 = 30,313.40/x
  3. Step 3: Cross multiply
    89,519.12x = 134,194.80 × 30,313.40
  4. Step 4: Simplify right side
    89,519.12x = 4,067,900,650.32
  5. Step 5: Solve for x
    x = 4,067,900,650.32/89,519.12
  6. Step 6: Final answer
    x = 45,441.70

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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.