Home / 55,925.32-83,921.48-20,889.60

Finding the Fourth Proportional to 55,925.32, 83,921.48 and 20,889.60

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Solution

The fourth proportional to 55,925.32, 83,921.48 and 20,889.60 is: 31,346.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,925.32 : 83,921.48 = 20,889.60 : x
  2. Step 2: Convert to fraction form
    55,925.32/83,921.48 = 20,889.60/x
  3. Step 3: Cross multiply
    55,925.32x = 83,921.48 × 20,889.60
  4. Step 4: Simplify right side
    55,925.32x = 1,753,086,148.61
  5. Step 5: Solve for x
    x = 1,753,086,148.61/55,925.32
  6. Step 6: Final answer
    x = 31,346.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.