Home / 75,424.40-113,136.60-40,432.40

Finding the Fourth Proportional to 75,424.40, 113,136.60 and 40,432.40

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Solution

The fourth proportional to 75,424.40, 113,136.60 and 40,432.40 is: 60,648.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,424.40 : 113,136.60 = 40,432.40 : x
  2. Step 2: Convert to fraction form
    75,424.40/113,136.60 = 40,432.40/x
  3. Step 3: Cross multiply
    75,424.40x = 113,136.60 × 40,432.40
  4. Step 4: Simplify right side
    75,424.40x = 4,574,384,265.84
  5. Step 5: Solve for x
    x = 4,574,384,265.84/75,424.40
  6. Step 6: Final answer
    x = 60,648.60

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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.