Home / 71,117.16-98,137.89-40,897.68

Finding the Fourth Proportional to 71,117.16, 98,137.89 and 40,897.68

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Solution

The fourth proportional to 71,117.16, 98,137.89 and 40,897.68 is: 56,436.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,117.16 : 98,137.89 = 40,897.68 : x
  2. Step 2: Convert to fraction form
    71,117.16/98,137.89 = 40,897.68/x
  3. Step 3: Cross multiply
    71,117.16x = 98,137.89 × 40,897.68
  4. Step 4: Simplify right side
    71,117.16x = 4,013,612,021.10
  5. Step 5: Solve for x
    x = 4,013,612,021.10/71,117.16
  6. Step 6: Final answer
    x = 56,436.62

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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.