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Finding the Fourth Proportional to 85,104.90, 127,657.35 and 22,775.40

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Solution

The fourth proportional to 85,104.90, 127,657.35 and 22,775.40 is: 34,163.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,104.90 : 127,657.35 = 22,775.40 : x
  2. Step 2: Convert to fraction form
    85,104.90/127,657.35 = 22,775.40/x
  3. Step 3: Cross multiply
    85,104.90x = 127,657.35 × 22,775.40
  4. Step 4: Simplify right side
    85,104.90x = 2,907,447,209.19
  5. Step 5: Solve for x
    x = 2,907,447,209.19/85,104.90
  6. Step 6: Final answer
    x = 34,163.10

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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.