Home / 83,739.84-115,554.24-47,921.64

Finding the Fourth Proportional to 83,739.84, 115,554.24 and 47,921.64

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Solution

The fourth proportional to 83,739.84, 115,554.24 and 47,921.64 is: 66,128.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,739.84 : 115,554.24 = 47,921.64 : x
  2. Step 2: Convert to fraction form
    83,739.84/115,554.24 = 47,921.64/x
  3. Step 3: Cross multiply
    83,739.84x = 115,554.24 × 47,921.64
  4. Step 4: Simplify right side
    83,739.84x = 5,537,548,689.75
  5. Step 5: Solve for x
    x = 5,537,548,689.75/83,739.84
  6. Step 6: Final answer
    x = 66,128.01

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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.