Home / 54,319.29-81,603.68-38,345.55

Finding the Fourth Proportional to 54,319.29, 81,603.68 and 38,345.55

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Solution

The fourth proportional to 54,319.29, 81,603.68 and 38,345.55 is: 57,606.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,319.29 : 81,603.68 = 38,345.55 : x
  2. Step 2: Convert to fraction form
    54,319.29/81,603.68 = 38,345.55/x
  3. Step 3: Cross multiply
    54,319.29x = 81,603.68 × 38,345.55
  4. Step 4: Simplify right side
    54,319.29x = 3,129,137,799.90
  5. Step 5: Solve for x
    x = 3,129,137,799.90/54,319.29
  6. Step 6: Final answer
    x = 57,606.38

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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.