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Finding the Fourth Proportional to 64,115.99, 88,504.76 and 57,389.75

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Solution

The fourth proportional to 64,115.99, 88,504.76 and 57,389.75 is: 79,219.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,115.99 : 88,504.76 = 57,389.75 : x
  2. Step 2: Convert to fraction form
    64,115.99/88,504.76 = 57,389.75/x
  3. Step 3: Cross multiply
    64,115.99x = 88,504.76 × 57,389.75
  4. Step 4: Simplify right side
    64,115.99x = 5,079,266,414.95
  5. Step 5: Solve for x
    x = 5,079,266,414.95/64,115.99
  6. Step 6: Final answer
    x = 79,219.96

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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.