Home / 98,923.35-136,520.91-55,887.90

Finding the Fourth Proportional to 98,923.35, 136,520.91 and 55,887.90

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Solution

The fourth proportional to 98,923.35, 136,520.91 and 55,887.90 is: 77,129.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,923.35 : 136,520.91 = 55,887.90 : x
  2. Step 2: Convert to fraction form
    98,923.35/136,520.91 = 55,887.90/x
  3. Step 3: Cross multiply
    98,923.35x = 136,520.91 × 55,887.90
  4. Step 4: Simplify right side
    98,923.35x = 7,629,866,965.99
  5. Step 5: Solve for x
    x = 7,629,866,965.99/98,923.35
  6. Step 6: Final answer
    x = 77,129.08

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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.