Home / 40,673.16-61,011.90-12,612.60

Finding the Fourth Proportional to 40,673.16, 61,011.90 and 12,612.60

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Solution

The fourth proportional to 40,673.16, 61,011.90 and 12,612.60 is: 18,919.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,673.16 : 61,011.90 = 12,612.60 : x
  2. Step 2: Convert to fraction form
    40,673.16/61,011.90 = 12,612.60/x
  3. Step 3: Cross multiply
    40,673.16x = 61,011.90 × 12,612.60
  4. Step 4: Simplify right side
    40,673.16x = 769,518,689.94
  5. Step 5: Solve for x
    x = 769,518,689.94/40,673.16
  6. Step 6: Final answer
    x = 18,919.57

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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.