Home / 89,451.40-134,169.36-30,285.76

Finding the Fourth Proportional to 89,451.40, 134,169.36 and 30,285.76

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Solution

The fourth proportional to 89,451.40, 134,169.36 and 30,285.76 is: 45,426.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,451.40 : 134,169.36 = 30,285.76 : x
  2. Step 2: Convert to fraction form
    89,451.40/134,169.36 = 30,285.76/x
  3. Step 3: Cross multiply
    89,451.40x = 134,169.36 × 30,285.76
  4. Step 4: Simplify right side
    89,451.40x = 4,063,421,036.31
  5. Step 5: Solve for x
    x = 4,063,421,036.31/89,451.40
  6. Step 6: Final answer
    x = 45,426.02

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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.