Home / 88,128.22-121,617.27-47,842.06

Finding the Fourth Proportional to 88,128.22, 121,617.27 and 47,842.06

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Solution

The fourth proportional to 88,128.22, 121,617.27 and 47,842.06 is: 66,022.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,128.22 : 121,617.27 = 47,842.06 : x
  2. Step 2: Convert to fraction form
    88,128.22/121,617.27 = 47,842.06/x
  3. Step 3: Cross multiply
    88,128.22x = 121,617.27 × 47,842.06
  4. Step 4: Simplify right side
    88,128.22x = 5,818,420,728.38
  5. Step 5: Solve for x
    x = 5,818,420,728.38/88,128.22
  6. Step 6: Final answer
    x = 66,022.22

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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.