Home / 56,604.97-78,115.67-31,113.70

Finding the Fourth Proportional to 56,604.97, 78,115.67 and 31,113.70

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Solution

The fourth proportional to 56,604.97, 78,115.67 and 31,113.70 is: 42,937.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,604.97 : 78,115.67 = 31,113.70 : x
  2. Step 2: Convert to fraction form
    56,604.97/78,115.67 = 31,113.70/x
  3. Step 3: Cross multiply
    56,604.97x = 78,115.67 × 31,113.70
  4. Step 4: Simplify right side
    56,604.97x = 2,430,467,131.10
  5. Step 5: Solve for x
    x = 2,430,467,131.10/56,604.97
  6. Step 6: Final answer
    x = 42,937.35

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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.