Home / 56,725.78-78,278.51-31,227.18

Finding the Fourth Proportional to 56,725.78, 78,278.51 and 31,227.18

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Solution

The fourth proportional to 56,725.78, 78,278.51 and 31,227.18 is: 43,091.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,725.78 : 78,278.51 = 31,227.18 : x
  2. Step 2: Convert to fraction form
    56,725.78/78,278.51 = 31,227.18/x
  3. Step 3: Cross multiply
    56,725.78x = 78,278.51 × 31,227.18
  4. Step 4: Simplify right side
    56,725.78x = 2,444,417,121.90
  5. Step 5: Solve for x
    x = 2,444,417,121.90/56,725.78
  6. Step 6: Final answer
    x = 43,091.82

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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.