Home / 56,859.12-78,466.20-31,709.04

Finding the Fourth Proportional to 56,859.12, 78,466.20 and 31,709.04

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Solution

The fourth proportional to 56,859.12, 78,466.20 and 31,709.04 is: 43,758.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,859.12 : 78,466.20 = 31,709.04 : x
  2. Step 2: Convert to fraction form
    56,859.12/78,466.20 = 31,709.04/x
  3. Step 3: Cross multiply
    56,859.12x = 78,466.20 × 31,709.04
  4. Step 4: Simplify right side
    56,859.12x = 2,488,087,874.45
  5. Step 5: Solve for x
    x = 2,488,087,874.45/56,859.12
  6. Step 6: Final answer
    x = 43,758.82

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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.