Home / 55,429.06-76,489.23-31,555.66

Finding the Fourth Proportional to 55,429.06, 76,489.23 and 31,555.66

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Solution

The fourth proportional to 55,429.06, 76,489.23 and 31,555.66 is: 43,545.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,429.06 : 76,489.23 = 31,555.66 : x
  2. Step 2: Convert to fraction form
    55,429.06/76,489.23 = 31,555.66/x
  3. Step 3: Cross multiply
    55,429.06x = 76,489.23 × 31,555.66
  4. Step 4: Simplify right side
    55,429.06x = 2,413,668,135.54
  5. Step 5: Solve for x
    x = 2,413,668,135.54/55,429.06
  6. Step 6: Final answer
    x = 43,545.18

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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.