Home / 42,754.74-64,132.11-11,589.99

Finding the Fourth Proportional to 42,754.74, 64,132.11 and 11,589.99

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Solution

The fourth proportional to 42,754.74, 64,132.11 and 11,589.99 is: 17,384.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,754.74 : 64,132.11 = 11,589.99 : x
  2. Step 2: Convert to fraction form
    42,754.74/64,132.11 = 11,589.99/x
  3. Step 3: Cross multiply
    42,754.74x = 64,132.11 × 11,589.99
  4. Step 4: Simplify right side
    42,754.74x = 743,290,513.58
  5. Step 5: Solve for x
    x = 743,290,513.58/42,754.74
  6. Step 6: Final answer
    x = 17,384.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.