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Finding the Fourth Proportional to 60,719.60, 91,079.40 and 18,599.60

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Solution

The fourth proportional to 60,719.60, 91,079.40 and 18,599.60 is: 27,899.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,719.60 : 91,079.40 = 18,599.60 : x
  2. Step 2: Convert to fraction form
    60,719.60/91,079.40 = 18,599.60/x
  3. Step 3: Cross multiply
    60,719.60x = 91,079.40 × 18,599.60
  4. Step 4: Simplify right side
    60,719.60x = 1,694,040,408.24
  5. Step 5: Solve for x
    x = 1,694,040,408.24/60,719.60
  6. Step 6: Final answer
    x = 27,899.40

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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.