Home / 56,575.25-78,076.28-31,424.75

Finding the Fourth Proportional to 56,575.25, 78,076.28 and 31,424.75

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Solution

The fourth proportional to 56,575.25, 78,076.28 and 31,424.75 is: 43,367.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,575.25 : 78,076.28 = 31,424.75 : x
  2. Step 2: Convert to fraction form
    56,575.25/78,076.28 = 31,424.75/x
  3. Step 3: Cross multiply
    56,575.25x = 78,076.28 × 31,424.75
  4. Step 4: Simplify right side
    56,575.25x = 2,453,527,579.93
  5. Step 5: Solve for x
    x = 2,453,527,579.93/56,575.25
  6. Step 6: Final answer
    x = 43,367.51

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1.5x scale

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.