Home / 42,701.97-64,061.19-13,114.56

Finding the Fourth Proportional to 42,701.97, 64,061.19 and 13,114.56

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Solution

The fourth proportional to 42,701.97, 64,061.19 and 13,114.56 is: 19,674.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,701.97 : 64,061.19 = 13,114.56 : x
  2. Step 2: Convert to fraction form
    42,701.97/64,061.19 = 13,114.56/x
  3. Step 3: Cross multiply
    42,701.97x = 64,061.19 × 13,114.56
  4. Step 4: Simplify right side
    42,701.97x = 840,134,319.93
  5. Step 5: Solve for x
    x = 840,134,319.93/42,701.97
  6. Step 6: Final answer
    x = 19,674.37

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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.