Home / 56,188.90-77,540.79-30,695.45

Finding the Fourth Proportional to 56,188.90, 77,540.79 and 30,695.45

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Solution

The fourth proportional to 56,188.90, 77,540.79 and 30,695.45 is: 42,359.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,188.90 : 77,540.79 = 30,695.45 : x
  2. Step 2: Convert to fraction form
    56,188.90/77,540.79 = 30,695.45/x
  3. Step 3: Cross multiply
    56,188.90x = 77,540.79 × 30,695.45
  4. Step 4: Simplify right side
    56,188.90x = 2,380,149,442.41
  5. Step 5: Solve for x
    x = 2,380,149,442.41/56,188.90
  6. Step 6: Final answer
    x = 42,359.78

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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.