Home / 56,776.36-78,348.27-31,281.82

Finding the Fourth Proportional to 56,776.36, 78,348.27 and 31,281.82

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Solution

The fourth proportional to 56,776.36, 78,348.27 and 31,281.82 is: 43,167.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,776.36 : 78,348.27 = 31,281.82 : x
  2. Step 2: Convert to fraction form
    56,776.36/78,348.27 = 31,281.82/x
  3. Step 3: Cross multiply
    56,776.36x = 78,348.27 × 31,281.82
  4. Step 4: Simplify right side
    56,776.36x = 2,450,876,479.45
  5. Step 5: Solve for x
    x = 2,450,876,479.45/56,776.36
  6. Step 6: Final answer
    x = 43,167.20

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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.