Home / 47,896.42-66,135.84-30,909.10

Finding the Fourth Proportional to 47,896.42, 66,135.84 and 30,909.10

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Solution

The fourth proportional to 47,896.42, 66,135.84 and 30,909.10 is: 42,679.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,896.42 : 66,135.84 = 30,909.10 : x
  2. Step 2: Convert to fraction form
    47,896.42/66,135.84 = 30,909.10/x
  3. Step 3: Cross multiply
    47,896.42x = 66,135.84 × 30,909.10
  4. Step 4: Simplify right side
    47,896.42x = 2,044,199,292.14
  5. Step 5: Solve for x
    x = 2,044,199,292.14/47,896.42
  6. Step 6: Final answer
    x = 42,679.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.