Home / 77,899.85-116,859.95-27,985.52

Finding the Fourth Proportional to 77,899.85, 116,859.95 and 27,985.52

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Solution

The fourth proportional to 77,899.85, 116,859.95 and 27,985.52 is: 41,981.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,899.85 : 116,859.95 = 27,985.52 : x
  2. Step 2: Convert to fraction form
    77,899.85/116,859.95 = 27,985.52/x
  3. Step 3: Cross multiply
    77,899.85x = 116,859.95 × 27,985.52
  4. Step 4: Simplify right side
    77,899.85x = 3,270,385,743.70
  5. Step 5: Solve for x
    x = 3,270,385,743.70/77,899.85
  6. Step 6: Final answer
    x = 41,981.93

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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.