Home / 89,697.28-123,756.24-57,884.80

Finding the Fourth Proportional to 89,697.28, 123,756.24 and 57,884.80

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Solution

The fourth proportional to 89,697.28, 123,756.24 and 57,884.80 is: 79,864.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,697.28 : 123,756.24 = 57,884.80 : x
  2. Step 2: Convert to fraction form
    89,697.28/123,756.24 = 57,884.80/x
  3. Step 3: Cross multiply
    89,697.28x = 123,756.24 × 57,884.80
  4. Step 4: Simplify right side
    89,697.28x = 7,163,605,201.15
  5. Step 5: Solve for x
    x = 7,163,605,201.15/89,697.28
  6. Step 6: Final answer
    x = 79,864.24

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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.