Home / 56,650.44-78,175.95-31,156.79

Finding the Fourth Proportional to 56,650.44, 78,175.95 and 31,156.79

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Solution

The fourth proportional to 56,650.44, 78,175.95 and 31,156.79 is: 42,995.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,650.44 : 78,175.95 = 31,156.79 : x
  2. Step 2: Convert to fraction form
    56,650.44/78,175.95 = 31,156.79/x
  3. Step 3: Cross multiply
    56,650.44x = 78,175.95 × 31,156.79
  4. Step 4: Simplify right side
    56,650.44x = 2,435,711,149.48
  5. Step 5: Solve for x
    x = 2,435,711,149.48/56,650.44
  6. Step 6: Final answer
    x = 42,995.45

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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.