Home / 71,208.95-98,278.13-40,993.61

Finding the Fourth Proportional to 71,208.95, 98,278.13 and 40,993.61

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Solution

The fourth proportional to 71,208.95, 98,278.13 and 40,993.61 is: 56,576.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,208.95 : 98,278.13 = 40,993.61 : x
  2. Step 2: Convert to fraction form
    71,208.95/98,278.13 = 40,993.61/x
  3. Step 3: Cross multiply
    71,208.95x = 98,278.13 × 40,993.61
  4. Step 4: Simplify right side
    71,208.95x = 4,028,774,943.84
  5. Step 5: Solve for x
    x = 4,028,774,943.84/71,208.95
  6. Step 6: Final answer
    x = 56,576.81

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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.