Home / 89,475.18-134,129.34-30,269.70

Finding the Fourth Proportional to 89,475.18, 134,129.34 and 30,269.70

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Solution

The fourth proportional to 89,475.18, 134,129.34 and 30,269.70 is: 45,376.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,475.18 : 134,129.34 = 30,269.70 : x
  2. Step 2: Convert to fraction form
    89,475.18/134,129.34 = 30,269.70/x
  3. Step 3: Cross multiply
    89,475.18x = 134,129.34 × 30,269.70
  4. Step 4: Simplify right side
    89,475.18x = 4,060,054,883.00
  5. Step 5: Solve for x
    x = 4,060,054,883.00/89,475.18
  6. Step 6: Final answer
    x = 45,376.33

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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.