Home / 39,878.20-59,817.30-34,337.80

Finding the Fourth Proportional to 39,878.20, 59,817.30 and 34,337.80

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Solution

The fourth proportional to 39,878.20, 59,817.30 and 34,337.80 is: 51,506.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,878.20 : 59,817.30 = 34,337.80 : x
  2. Step 2: Convert to fraction form
    39,878.20/59,817.30 = 34,337.80/x
  3. Step 3: Cross multiply
    39,878.20x = 59,817.30 × 34,337.80
  4. Step 4: Simplify right side
    39,878.20x = 2,053,994,483.94
  5. Step 5: Solve for x
    x = 2,053,994,483.94/39,878.20
  6. Step 6: Final answer
    x = 51,506.70

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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.