Home / 55,211.13-76,218.67-38,228.39

Finding the Fourth Proportional to 55,211.13, 76,218.67 and 38,228.39

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Solution

The fourth proportional to 55,211.13, 76,218.67 and 38,228.39 is: 52,774.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,211.13 : 76,218.67 = 38,228.39 : x
  2. Step 2: Convert to fraction form
    55,211.13/76,218.67 = 38,228.39/x
  3. Step 3: Cross multiply
    55,211.13x = 76,218.67 × 38,228.39
  4. Step 4: Simplify right side
    55,211.13x = 2,913,717,042.04
  5. Step 5: Solve for x
    x = 2,913,717,042.04/55,211.13
  6. Step 6: Final answer
    x = 52,774.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.