Home / 47,805.42-71,683.65-28,089.90

Finding the Fourth Proportional to 47,805.42, 71,683.65 and 28,089.90

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Solution

The fourth proportional to 47,805.42, 71,683.65 and 28,089.90 is: 42,120.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,805.42 : 71,683.65 = 28,089.90 : x
  2. Step 2: Convert to fraction form
    47,805.42/71,683.65 = 28,089.90/x
  3. Step 3: Cross multiply
    47,805.42x = 71,683.65 × 28,089.90
  4. Step 4: Simplify right side
    47,805.42x = 2,013,586,560.14
  5. Step 5: Solve for x
    x = 2,013,586,560.14/47,805.42
  6. Step 6: Final answer
    x = 42,120.47

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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.