Home / 88,061.43-121,530.80-49,820.97

Finding the Fourth Proportional to 88,061.43, 121,530.80 and 49,820.97

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Solution

The fourth proportional to 88,061.43, 121,530.80 and 49,820.97 is: 68,756.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,061.43 : 121,530.80 = 49,820.97 : x
  2. Step 2: Convert to fraction form
    88,061.43/121,530.80 = 49,820.97/x
  3. Step 3: Cross multiply
    88,061.43x = 121,530.80 × 49,820.97
  4. Step 4: Simplify right side
    88,061.43x = 6,054,782,563.12
  5. Step 5: Solve for x
    x = 6,054,782,563.12/88,061.43
  6. Step 6: Final answer
    x = 68,756.35

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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.