Home / 77,180.55-106,407.05-55,652.28

Finding the Fourth Proportional to 77,180.55, 106,407.05 and 55,652.28

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Solution

The fourth proportional to 77,180.55, 106,407.05 and 55,652.28 is: 76,726.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,180.55 : 106,407.05 = 55,652.28 : x
  2. Step 2: Convert to fraction form
    77,180.55/106,407.05 = 55,652.28/x
  3. Step 3: Cross multiply
    77,180.55x = 106,407.05 × 55,652.28
  4. Step 4: Simplify right side
    77,180.55x = 5,921,794,940.57
  5. Step 5: Solve for x
    x = 5,921,794,940.57/77,180.55
  6. Step 6: Final answer
    x = 76,726.52

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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.