Home / 99,439.40-137,226.36-54,727.40

Finding the Fourth Proportional to 99,439.40, 137,226.36 and 54,727.40

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Solution

The fourth proportional to 99,439.40, 137,226.36 and 54,727.40 is: 75,523.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,439.40 : 137,226.36 = 54,727.40 : x
  2. Step 2: Convert to fraction form
    99,439.40/137,226.36 = 54,727.40/x
  3. Step 3: Cross multiply
    99,439.40x = 137,226.36 × 54,727.40
  4. Step 4: Simplify right side
    99,439.40x = 7,510,041,894.26
  5. Step 5: Solve for x
    x = 7,510,041,894.26/99,439.40
  6. Step 6: Final answer
    x = 75,523.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.