Home / 89,548.20-123,554.16-57,678.75

Finding the Fourth Proportional to 89,548.20, 123,554.16 and 57,678.75

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Solution

The fourth proportional to 89,548.20, 123,554.16 and 57,678.75 is: 79,582.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,548.20 : 123,554.16 = 57,678.75 : x
  2. Step 2: Convert to fraction form
    89,548.20/123,554.16 = 57,678.75/x
  3. Step 3: Cross multiply
    89,548.20x = 123,554.16 × 57,678.75
  4. Step 4: Simplify right side
    89,548.20x = 7,126,449,506.10
  5. Step 5: Solve for x
    x = 7,126,449,506.10/89,548.20
  6. Step 6: Final answer
    x = 79,582.28

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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.