Home / 56,261.20-77,638.92-31,109.84

Finding the Fourth Proportional to 56,261.20, 77,638.92 and 31,109.84

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Solution

The fourth proportional to 56,261.20, 77,638.92 and 31,109.84 is: 42,930.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,261.20 : 77,638.92 = 31,109.84 : x
  2. Step 2: Convert to fraction form
    56,261.20/77,638.92 = 31,109.84/x
  3. Step 3: Cross multiply
    56,261.20x = 77,638.92 × 31,109.84
  4. Step 4: Simplify right side
    56,261.20x = 2,415,334,378.97
  5. Step 5: Solve for x
    x = 2,415,334,378.97/56,261.20
  6. Step 6: Final answer
    x = 42,930.73

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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.