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Finding the Fourth Proportional to 70,401.87, 105,074.03 and 60,872.13

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Solution

The fourth proportional to 70,401.87, 105,074.03 and 60,872.13 is: 90,851.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,401.87 : 105,074.03 = 60,872.13 : x
  2. Step 2: Convert to fraction form
    70,401.87/105,074.03 = 60,872.13/x
  3. Step 3: Cross multiply
    70,401.87x = 105,074.03 × 60,872.13
  4. Step 4: Simplify right side
    70,401.87x = 6,396,080,165.96
  5. Step 5: Solve for x
    x = 6,396,080,165.96/70,401.87
  6. Step 6: Final answer
    x = 90,851.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.