Home / 77,051.43-115,544.34-30,271.50

Finding the Fourth Proportional to 77,051.43, 115,544.34 and 30,271.50

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Solution

The fourth proportional to 77,051.43, 115,544.34 and 30,271.50 is: 45,394.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,051.43 : 115,544.34 = 30,271.50 : x
  2. Step 2: Convert to fraction form
    77,051.43/115,544.34 = 30,271.50/x
  3. Step 3: Cross multiply
    77,051.43x = 115,544.34 × 30,271.50
  4. Step 4: Simplify right side
    77,051.43x = 3,497,700,488.31
  5. Step 5: Solve for x
    x = 3,497,700,488.31/77,051.43
  6. Step 6: Final answer
    x = 45,394.36

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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.