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Finding the Fourth Proportional to 45,987.62, 69,000.86 and 19,704.74

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Solution

The fourth proportional to 45,987.62, 69,000.86 and 19,704.74 is: 29,565.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,987.62 : 69,000.86 = 19,704.74 : x
  2. Step 2: Convert to fraction form
    45,987.62/69,000.86 = 19,704.74/x
  3. Step 3: Cross multiply
    45,987.62x = 69,000.86 × 19,704.74
  4. Step 4: Simplify right side
    45,987.62x = 1,359,643,710.33
  5. Step 5: Solve for x
    x = 1,359,643,710.33/45,987.62
  6. Step 6: Final answer
    x = 29,565.43

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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.