Home / 51,402.11-70,907.55-31,265.15

Finding the Fourth Proportional to 51,402.11, 70,907.55 and 31,265.15

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Solution

The fourth proportional to 51,402.11, 70,907.55 and 31,265.15 is: 43,129.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,402.11 : 70,907.55 = 31,265.15 : x
  2. Step 2: Convert to fraction form
    51,402.11/70,907.55 = 31,265.15/x
  3. Step 3: Cross multiply
    51,402.11x = 70,907.55 × 31,265.15
  4. Step 4: Simplify right side
    51,402.11x = 2,216,935,186.88
  5. Step 5: Solve for x
    x = 2,216,935,186.88/51,402.11
  6. Step 6: Final answer
    x = 43,129.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.