Home / 43,686.72-65,212.20-40,440.96

Finding the Fourth Proportional to 43,686.72, 65,212.20 and 40,440.96

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Solution

The fourth proportional to 43,686.72, 65,212.20 and 40,440.96 is: 60,367.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,686.72 : 65,212.20 = 40,440.96 : x
  2. Step 2: Convert to fraction form
    43,686.72/65,212.20 = 40,440.96/x
  3. Step 3: Cross multiply
    43,686.72x = 65,212.20 × 40,440.96
  4. Step 4: Simplify right side
    43,686.72x = 2,637,243,971.71
  5. Step 5: Solve for x
    x = 2,637,243,971.71/43,686.72
  6. Step 6: Final answer
    x = 60,367.18

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.