Home / 56,983.88-78,630.97-31,488.70

Finding the Fourth Proportional to 56,983.88, 78,630.97 and 31,488.70

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Solution

The fourth proportional to 56,983.88, 78,630.97 and 31,488.70 is: 43,450.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,983.88 : 78,630.97 = 31,488.70 : x
  2. Step 2: Convert to fraction form
    56,983.88/78,630.97 = 31,488.70/x
  3. Step 3: Cross multiply
    56,983.88x = 78,630.97 × 31,488.70
  4. Step 4: Simplify right side
    56,983.88x = 2,475,986,823.37
  5. Step 5: Solve for x
    x = 2,475,986,823.37/56,983.88
  6. Step 6: Final answer
    x = 43,450.65

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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.