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Finding the Fourth Proportional to 71,360.95, 98,278.37 and 69,811.22

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Solution

The fourth proportional to 71,360.95, 98,278.37 and 69,811.22 is: 96,144.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,360.95 : 98,278.37 = 69,811.22 : x
  2. Step 2: Convert to fraction form
    71,360.95/98,278.37 = 69,811.22/x
  3. Step 3: Cross multiply
    71,360.95x = 98,278.37 × 69,811.22
  4. Step 4: Simplify right side
    71,360.95x = 6,860,932,560.26
  5. Step 5: Solve for x
    x = 6,860,932,560.26/71,360.95
  6. Step 6: Final answer
    x = 96,144.08

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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.