Home / 81,760.26-112,838.48-45,465.30

Finding the Fourth Proportional to 81,760.26, 112,838.48 and 45,465.30

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Solution

The fourth proportional to 81,760.26, 112,838.48 and 45,465.30 is: 62,747.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,760.26 : 112,838.48 = 45,465.30 : x
  2. Step 2: Convert to fraction form
    81,760.26/112,838.48 = 45,465.30/x
  3. Step 3: Cross multiply
    81,760.26x = 112,838.48 × 45,465.30
  4. Step 4: Simplify right side
    81,760.26x = 5,130,235,344.74
  5. Step 5: Solve for x
    x = 5,130,235,344.74/81,760.26
  6. Step 6: Final answer
    x = 62,747.30

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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.