Home / 43,257.57-64,841.81-31,381.76

Finding the Fourth Proportional to 43,257.57, 64,841.81 and 31,381.76

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Solution

The fourth proportional to 43,257.57, 64,841.81 and 31,381.76 is: 47,040.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,257.57 : 64,841.81 = 31,381.76 : x
  2. Step 2: Convert to fraction form
    43,257.57/64,841.81 = 31,381.76/x
  3. Step 3: Cross multiply
    43,257.57x = 64,841.81 × 31,381.76
  4. Step 4: Simplify right side
    43,257.57x = 2,034,849,638.27
  5. Step 5: Solve for x
    x = 2,034,849,638.27/43,257.57
  6. Step 6: Final answer
    x = 47,040.31

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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.