Home / 43,315.23-64,972.77-31,543.86

Finding the Fourth Proportional to 43,315.23, 64,972.77 and 31,543.86

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Solution

The fourth proportional to 43,315.23, 64,972.77 and 31,543.86 is: 47,315.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,315.23 : 64,972.77 = 31,543.86 : x
  2. Step 2: Convert to fraction form
    43,315.23/64,972.77 = 31,543.86/x
  3. Step 3: Cross multiply
    43,315.23x = 64,972.77 × 31,543.86
  4. Step 4: Simplify right side
    43,315.23x = 2,049,491,960.69
  5. Step 5: Solve for x
    x = 2,049,491,960.69/43,315.23
  6. Step 6: Final answer
    x = 47,315.74

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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.