Home / 42,754.03-64,132.13-20,259.43

Finding the Fourth Proportional to 42,754.03, 64,132.13 and 20,259.43

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Solution

The fourth proportional to 42,754.03, 64,132.13 and 20,259.43 is: 30,389.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,754.03 : 64,132.13 = 20,259.43 : x
  2. Step 2: Convert to fraction form
    42,754.03/64,132.13 = 20,259.43/x
  3. Step 3: Cross multiply
    42,754.03x = 64,132.13 × 20,259.43
  4. Step 4: Simplify right side
    42,754.03x = 1,299,280,288.80
  5. Step 5: Solve for x
    x = 1,299,280,288.80/42,754.03
  6. Step 6: Final answer
    x = 30,389.66

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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.