Home / 89,570.40-134,355.60-30,472.80

Finding the Fourth Proportional to 89,570.40, 134,355.60 and 30,472.80

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Solution

The fourth proportional to 89,570.40, 134,355.60 and 30,472.80 is: 45,709.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,570.40 : 134,355.60 = 30,472.80 : x
  2. Step 2: Convert to fraction form
    89,570.40/134,355.60 = 30,472.80/x
  3. Step 3: Cross multiply
    89,570.40x = 134,355.60 × 30,472.80
  4. Step 4: Simplify right side
    89,570.40x = 4,094,191,327.68
  5. Step 5: Solve for x
    x = 4,094,191,327.68/89,570.40
  6. Step 6: Final answer
    x = 45,709.20

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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.