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Finding the Fourth Proportional to 73,810.70, 110,716.05 and 69,728.30

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Solution

The fourth proportional to 73,810.70, 110,716.05 and 69,728.30 is: 104,592.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,810.70 : 110,716.05 = 69,728.30 : x
  2. Step 2: Convert to fraction form
    73,810.70/110,716.05 = 69,728.30/x
  3. Step 3: Cross multiply
    73,810.70x = 110,716.05 × 69,728.30
  4. Step 4: Simplify right side
    73,810.70x = 7,720,041,949.22
  5. Step 5: Solve for x
    x = 7,720,041,949.22/73,810.70
  6. Step 6: Final answer
    x = 104,592.45

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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.