Home / 77,982.12-116,832.42-35,897.40

Finding the Fourth Proportional to 77,982.12, 116,832.42 and 35,897.40

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Solution

The fourth proportional to 77,982.12, 116,832.42 and 35,897.40 is: 53,781.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,982.12 : 116,832.42 = 35,897.40 : x
  2. Step 2: Convert to fraction form
    77,982.12/116,832.42 = 35,897.40/x
  3. Step 3: Cross multiply
    77,982.12x = 116,832.42 × 35,897.40
  4. Step 4: Simplify right side
    77,982.12x = 4,193,980,113.71
  5. Step 5: Solve for x
    x = 4,193,980,113.71/77,982.12
  6. Step 6: Final answer
    x = 53,781.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.