Home / 99,600.56-137,448.79-54,278.55

Finding the Fourth Proportional to 99,600.56, 137,448.79 and 54,278.55

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Solution

The fourth proportional to 99,600.56, 137,448.79 and 54,278.55 is: 74,904.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,600.56 : 137,448.79 = 54,278.55 : x
  2. Step 2: Convert to fraction form
    99,600.56/137,448.79 = 54,278.55/x
  3. Step 3: Cross multiply
    99,600.56x = 137,448.79 × 54,278.55
  4. Step 4: Simplify right side
    99,600.56x = 7,460,521,020.45
  5. Step 5: Solve for x
    x = 7,460,521,020.45/99,600.56
  6. Step 6: Final answer
    x = 74,904.41

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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.