Home / 55,909.29-83,878.52-20,849.25

Finding the Fourth Proportional to 55,909.29, 83,878.52 and 20,849.25

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Solution

The fourth proportional to 55,909.29, 83,878.52 and 20,849.25 is: 31,279.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,909.29 : 83,878.52 = 20,849.25 : x
  2. Step 2: Convert to fraction form
    55,909.29/83,878.52 = 20,849.25/x
  3. Step 3: Cross multiply
    55,909.29x = 83,878.52 × 20,849.25
  4. Step 4: Simplify right side
    55,909.29x = 1,748,804,233.11
  5. Step 5: Solve for x
    x = 1,748,804,233.11/55,909.29
  6. Step 6: Final answer
    x = 31,279.31

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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.