Home / 51,909.32-77,847.78-34,139

Finding the Fourth Proportional to 51,909.32, 77,847.78 and 34,139

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Solution

The fourth proportional to 51,909.32, 77,847.78 and 34,139 is: 51,197.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,909.32 : 77,847.78 = 34,139 : x
  2. Step 2: Convert to fraction form
    51,909.32/77,847.78 = 34,139/x
  3. Step 3: Cross multiply
    51,909.32x = 77,847.78 × 34,139
  4. Step 4: Simplify right side
    51,909.32x = 2,657,645,361.42
  5. Step 5: Solve for x
    x = 2,657,645,361.42/51,909.32
  6. Step 6: Final answer
    x = 51,197.85

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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.