Home / 89,666.85-123,607.49-57,396.72

Finding the Fourth Proportional to 89,666.85, 123,607.49 and 57,396.72

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Solution

The fourth proportional to 89,666.85, 123,607.49 and 57,396.72 is: 79,122.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,666.85 : 123,607.49 = 57,396.72 : x
  2. Step 2: Convert to fraction form
    89,666.85/123,607.49 = 57,396.72/x
  3. Step 3: Cross multiply
    89,666.85x = 123,607.49 × 57,396.72
  4. Step 4: Simplify right side
    89,666.85x = 7,094,664,206.45
  5. Step 5: Solve for x
    x = 7,094,664,206.45/89,666.85
  6. Step 6: Final answer
    x = 79,122.49

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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.