Home / 55,331.12-76,356.28-30,180.08

Finding the Fourth Proportional to 55,331.12, 76,356.28 and 30,180.08

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Solution

The fourth proportional to 55,331.12, 76,356.28 and 30,180.08 is: 41,648.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,331.12 : 76,356.28 = 30,180.08 : x
  2. Step 2: Convert to fraction form
    55,331.12/76,356.28 = 30,180.08/x
  3. Step 3: Cross multiply
    55,331.12x = 76,356.28 × 30,180.08
  4. Step 4: Simplify right side
    55,331.12x = 2,304,438,638.90
  5. Step 5: Solve for x
    x = 2,304,438,638.90/55,331.12
  6. Step 6: Final answer
    x = 41,648.15

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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.