Home / 83,747.51-115,519.73-55,070.47

Finding the Fourth Proportional to 83,747.51, 115,519.73 and 55,070.47

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Solution

The fourth proportional to 83,747.51, 115,519.73 and 55,070.47 is: 75,963.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,747.51 : 115,519.73 = 55,070.47 : x
  2. Step 2: Convert to fraction form
    83,747.51/115,519.73 = 55,070.47/x
  3. Step 3: Cross multiply
    83,747.51x = 115,519.73 × 55,070.47
  4. Step 4: Simplify right side
    83,747.51x = 6,361,725,825.37
  5. Step 5: Solve for x
    x = 6,361,725,825.37/83,747.51
  6. Step 6: Final answer
    x = 75,963.16

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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.