Home / 56,757.71-78,326.18-31,264.18

Finding the Fourth Proportional to 56,757.71, 78,326.18 and 31,264.18

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Solution

The fourth proportional to 56,757.71, 78,326.18 and 31,264.18 is: 43,144.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,757.71 : 78,326.18 = 31,264.18 : x
  2. Step 2: Convert to fraction form
    56,757.71/78,326.18 = 31,264.18/x
  3. Step 3: Cross multiply
    56,757.71x = 78,326.18 × 31,264.18
  4. Step 4: Simplify right side
    56,757.71x = 2,448,803,790.23
  5. Step 5: Solve for x
    x = 2,448,803,790.23/56,757.71
  6. Step 6: Final answer
    x = 43,144.87

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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.