Home / 261,051.06-391,576.93-71,513.11

Finding the Fourth Proportional to 261,051.06, 391,576.93 and 71,513.11

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Solution

The fourth proportional to 261,051.06, 391,576.93 and 71,513.11 is: 107,269.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,051.06 : 391,576.93 = 71,513.11 : x
  2. Step 2: Convert to fraction form
    261,051.06/391,576.93 = 71,513.11/x
  3. Step 3: Cross multiply
    261,051.06x = 391,576.93 × 71,513.11
  4. Step 4: Simplify right side
    261,051.06x = 28,002,884,068.55
  5. Step 5: Solve for x
    x = 28,002,884,068.55/261,051.06
  6. Step 6: Final answer
    x = 107,269.76

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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.