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Finding the Fourth Proportional to 69,015.92, 103,482.05 and 45,018.15

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Solution

The fourth proportional to 69,015.92, 103,482.05 and 45,018.15 is: 67,499.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,015.92 : 103,482.05 = 45,018.15 : x
  2. Step 2: Convert to fraction form
    69,015.92/103,482.05 = 45,018.15/x
  3. Step 3: Cross multiply
    69,015.92x = 103,482.05 × 45,018.15
  4. Step 4: Simplify right side
    69,015.92x = 4,658,570,449.21
  5. Step 5: Solve for x
    x = 4,658,570,449.21/69,015.92
  6. Step 6: Final answer
    x = 67,499.94

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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.