Home / 87,085.73-130,641.64-30,921.17

Finding the Fourth Proportional to 87,085.73, 130,641.64 and 30,921.17

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Solution

The fourth proportional to 87,085.73, 130,641.64 and 30,921.17 is: 46,386.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,085.73 : 130,641.64 = 30,921.17 : x
  2. Step 2: Convert to fraction form
    87,085.73/130,641.64 = 30,921.17/x
  3. Step 3: Cross multiply
    87,085.73x = 130,641.64 × 30,921.17
  4. Step 4: Simplify right side
    87,085.73x = 4,039,591,629.01
  5. Step 5: Solve for x
    x = 4,039,591,629.01/87,085.73
  6. Step 6: Final answer
    x = 46,386.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.