Home / 83,750.18-115,593.47-51,512.51

Finding the Fourth Proportional to 83,750.18, 115,593.47 and 51,512.51

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Solution

The fourth proportional to 83,750.18, 115,593.47 and 51,512.51 is: 71,098.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,750.18 : 115,593.47 = 51,512.51 : x
  2. Step 2: Convert to fraction form
    83,750.18/115,593.47 = 51,512.51/x
  3. Step 3: Cross multiply
    83,750.18x = 115,593.47 × 51,512.51
  4. Step 4: Simplify right side
    83,750.18x = 5,954,509,201.34
  5. Step 5: Solve for x
    x = 5,954,509,201.34/83,750.18
  6. Step 6: Final answer
    x = 71,098.47

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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.