Home / 83,071.12-114,637.68-45,345.28

Finding the Fourth Proportional to 83,071.12, 114,637.68 and 45,345.28

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Solution

The fourth proportional to 83,071.12, 114,637.68 and 45,345.28 is: 62,576.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,071.12 : 114,637.68 = 45,345.28 : x
  2. Step 2: Convert to fraction form
    83,071.12/114,637.68 = 45,345.28/x
  3. Step 3: Cross multiply
    83,071.12x = 114,637.68 × 45,345.28
  4. Step 4: Simplify right side
    83,071.12x = 5,198,277,698.15
  5. Step 5: Solve for x
    x = 5,198,277,698.15/83,071.12
  6. Step 6: Final answer
    x = 62,576.23

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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.