Home / 71,215.11-98,272.86-38,943.33

Finding the Fourth Proportional to 71,215.11, 98,272.86 and 38,943.33

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Solution

The fourth proportional to 71,215.11, 98,272.86 and 38,943.33 is: 53,739.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,215.11 : 98,272.86 = 38,943.33 : x
  2. Step 2: Convert to fraction form
    71,215.11/98,272.86 = 38,943.33/x
  3. Step 3: Cross multiply
    71,215.11x = 98,272.86 × 38,943.33
  4. Step 4: Simplify right side
    71,215.11x = 3,827,072,417.02
  5. Step 5: Solve for x
    x = 3,827,072,417.02/71,215.11
  6. Step 6: Final answer
    x = 53,739.61

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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.