Home / 54,218.79-80,959.12-47,840.51

Finding the Fourth Proportional to 54,218.79, 80,959.12 and 47,840.51

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Solution

The fourth proportional to 54,218.79, 80,959.12 and 47,840.51 is: 71,435.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,218.79 : 80,959.12 = 47,840.51 : x
  2. Step 2: Convert to fraction form
    54,218.79/80,959.12 = 47,840.51/x
  3. Step 3: Cross multiply
    54,218.79x = 80,959.12 × 47,840.51
  4. Step 4: Simplify right side
    54,218.79x = 3,873,125,672.75
  5. Step 5: Solve for x
    x = 3,873,125,672.75/54,218.79
  6. Step 6: Final answer
    x = 71,435.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.