Home / 89,376.12-133,909.32-54,242.16

Finding the Fourth Proportional to 89,376.12, 133,909.32 and 54,242.16

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Solution

The fourth proportional to 89,376.12, 133,909.32 and 54,242.16 is: 81,269.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,376.12 : 133,909.32 = 54,242.16 : x
  2. Step 2: Convert to fraction form
    89,376.12/133,909.32 = 54,242.16/x
  3. Step 3: Cross multiply
    89,376.12x = 133,909.32 × 54,242.16
  4. Step 4: Simplify right side
    89,376.12x = 7,263,530,760.93
  5. Step 5: Solve for x
    x = 7,263,530,760.93/89,376.12
  6. Step 6: Final answer
    x = 81,269.26

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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.