Home / 89,031.15-122,864.40-48,744.21

Finding the Fourth Proportional to 89,031.15, 122,864.40 and 48,744.21

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Solution

The fourth proportional to 89,031.15, 122,864.40 and 48,744.21 is: 67,267.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,031.15 : 122,864.40 = 48,744.21 : x
  2. Step 2: Convert to fraction form
    89,031.15/122,864.40 = 48,744.21/x
  3. Step 3: Cross multiply
    89,031.15x = 122,864.40 × 48,744.21
  4. Step 4: Simplify right side
    89,031.15x = 5,988,928,115.12
  5. Step 5: Solve for x
    x = 5,988,928,115.12/89,031.15
  6. Step 6: Final answer
    x = 67,267.78

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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.