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Finding the Fourth Proportional to 85,466.95, 128,200.52 and 22,287.02

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Solution

The fourth proportional to 85,466.95, 128,200.52 and 22,287.02 is: 33,430.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,466.95 : 128,200.52 = 22,287.02 : x
  2. Step 2: Convert to fraction form
    85,466.95/128,200.52 = 22,287.02/x
  3. Step 3: Cross multiply
    85,466.95x = 128,200.52 × 22,287.02
  4. Step 4: Simplify right side
    85,466.95x = 2,857,207,553.25
  5. Step 5: Solve for x
    x = 2,857,207,553.25/85,466.95
  6. Step 6: Final answer
    x = 33,430.55

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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.