Home / 90,887.13-125,391.78-52,625.80

Finding the Fourth Proportional to 90,887.13, 125,391.78 and 52,625.80

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Solution

The fourth proportional to 90,887.13, 125,391.78 and 52,625.80 is: 72,604.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,887.13 : 125,391.78 = 52,625.80 : x
  2. Step 2: Convert to fraction form
    90,887.13/125,391.78 = 52,625.80/x
  3. Step 3: Cross multiply
    90,887.13x = 125,391.78 × 52,625.80
  4. Step 4: Simplify right side
    90,887.13x = 6,598,841,977.40
  5. Step 5: Solve for x
    x = 6,598,841,977.40/90,887.13
  6. Step 6: Final answer
    x = 72,604.80

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1.5x scale

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.