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Finding the Fourth Proportional to 71,360.70, 98,278.02 and 69,810.98

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Solution

The fourth proportional to 71,360.70, 98,278.02 and 69,810.98 is: 96,143.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,360.70 : 98,278.02 = 69,810.98 : x
  2. Step 2: Convert to fraction form
    71,360.70/98,278.02 = 69,810.98/x
  3. Step 3: Cross multiply
    71,360.70x = 98,278.02 × 69,810.98
  4. Step 4: Simplify right side
    71,360.70x = 6,860,884,397.27
  5. Step 5: Solve for x
    x = 6,860,884,397.27/71,360.70
  6. Step 6: Final answer
    x = 96,143.74

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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.