Home / 85,553.20-128,329.80-23,223.70

Finding the Fourth Proportional to 85,553.20, 128,329.80 and 23,223.70

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Solution

The fourth proportional to 85,553.20, 128,329.80 and 23,223.70 is: 34,835.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,553.20 : 128,329.80 = 23,223.70 : x
  2. Step 2: Convert to fraction form
    85,553.20/128,329.80 = 23,223.70/x
  3. Step 3: Cross multiply
    85,553.20x = 128,329.80 × 23,223.70
  4. Step 4: Simplify right side
    85,553.20x = 2,980,292,776.26
  5. Step 5: Solve for x
    x = 2,980,292,776.26/85,553.20
  6. Step 6: Final answer
    x = 34,835.55

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Similar ratio
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1.5x scale

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.