Home / 56,734.28-78,290.24-31,235.68

Finding the Fourth Proportional to 56,734.28, 78,290.24 and 31,235.68

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Solution

The fourth proportional to 56,734.28, 78,290.24 and 31,235.68 is: 43,103.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,734.28 : 78,290.24 = 31,235.68 : x
  2. Step 2: Convert to fraction form
    56,734.28/78,290.24 = 31,235.68/x
  3. Step 3: Cross multiply
    56,734.28x = 78,290.24 × 31,235.68
  4. Step 4: Simplify right side
    56,734.28x = 2,445,448,883.76
  5. Step 5: Solve for x
    x = 2,445,448,883.76/56,734.28
  6. Step 6: Final answer
    x = 43,103.55

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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.