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Finding the Fourth Proportional to 75,500.90, 113,250.90 and 19,340.90

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Solution

The fourth proportional to 75,500.90, 113,250.90 and 19,340.90 is: 29,011.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,500.90 : 113,250.90 = 19,340.90 : x
  2. Step 2: Convert to fraction form
    75,500.90/113,250.90 = 19,340.90/x
  3. Step 3: Cross multiply
    75,500.90x = 113,250.90 × 19,340.90
  4. Step 4: Simplify right side
    75,500.90x = 2,190,374,331.81
  5. Step 5: Solve for x
    x = 2,190,374,331.81/75,500.90
  6. Step 6: Final answer
    x = 29,011.23

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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.