Home / 55,217.29-76,179.85-31,330.13

Finding the Fourth Proportional to 55,217.29, 76,179.85 and 31,330.13

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Solution

The fourth proportional to 55,217.29, 76,179.85 and 31,330.13 is: 43,224.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,217.29 : 76,179.85 = 31,330.13 : x
  2. Step 2: Convert to fraction form
    55,217.29/76,179.85 = 31,330.13/x
  3. Step 3: Cross multiply
    55,217.29x = 76,179.85 × 31,330.13
  4. Step 4: Simplify right side
    55,217.29x = 2,386,724,603.88
  5. Step 5: Solve for x
    x = 2,386,724,603.88/55,217.29
  6. Step 6: Final answer
    x = 43,224.23

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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.