Home / 55,358.11-76,395.87-31,488.22

Finding the Fourth Proportional to 55,358.11, 76,395.87 and 31,488.22

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Solution

The fourth proportional to 55,358.11, 76,395.87 and 31,488.22 is: 43,454.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,358.11 : 76,395.87 = 31,488.22 : x
  2. Step 2: Convert to fraction form
    55,358.11/76,395.87 = 31,488.22/x
  3. Step 3: Cross multiply
    55,358.11x = 76,395.87 × 31,488.22
  4. Step 4: Simplify right side
    55,358.11x = 2,405,569,961.65
  5. Step 5: Solve for x
    x = 2,405,569,961.65/55,358.11
  6. Step 6: Final answer
    x = 43,454.70

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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.