Home / 77,862.97-116,698.10-55,337.75

Finding the Fourth Proportional to 77,862.97, 116,698.10 and 55,337.75

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Solution

The fourth proportional to 77,862.97, 116,698.10 and 55,337.75 is: 82,938.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,862.97 : 116,698.10 = 55,337.75 : x
  2. Step 2: Convert to fraction form
    77,862.97/116,698.10 = 55,337.75/x
  3. Step 3: Cross multiply
    77,862.97x = 116,698.10 × 55,337.75
  4. Step 4: Simplify right side
    77,862.97x = 6,457,809,860.71
  5. Step 5: Solve for x
    x = 6,457,809,860.71/77,862.97
  6. Step 6: Final answer
    x = 82,938.14

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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.