Home / 49,835.80-74,676.90-42,002.20

Finding the Fourth Proportional to 49,835.80, 74,676.90 and 42,002.20

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Solution

The fourth proportional to 49,835.80, 74,676.90 and 42,002.20 is: 62,938.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,835.80 : 74,676.90 = 42,002.20 : x
  2. Step 2: Convert to fraction form
    49,835.80/74,676.90 = 42,002.20/x
  3. Step 3: Cross multiply
    49,835.80x = 74,676.90 × 42,002.20
  4. Step 4: Simplify right side
    49,835.80x = 3,136,594,089.18
  5. Step 5: Solve for x
    x = 3,136,594,089.18/49,835.80
  6. Step 6: Final answer
    x = 62,938.57

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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.