Home / 89,011.80-122,794.20-55,008.45

Finding the Fourth Proportional to 89,011.80, 122,794.20 and 55,008.45

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Solution

The fourth proportional to 89,011.80, 122,794.20 and 55,008.45 is: 75,885.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,011.80 : 122,794.20 = 55,008.45 : x
  2. Step 2: Convert to fraction form
    89,011.80/122,794.20 = 55,008.45/x
  3. Step 3: Cross multiply
    89,011.80x = 122,794.20 × 55,008.45
  4. Step 4: Simplify right side
    89,011.80x = 6,754,718,610.99
  5. Step 5: Solve for x
    x = 6,754,718,610.99/89,011.80
  6. Step 6: Final answer
    x = 75,885.65

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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.