Home / 77,017.65-115,539.62-34,338.57

Finding the Fourth Proportional to 77,017.65, 115,539.62 and 34,338.57

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Solution

The fourth proportional to 77,017.65, 115,539.62 and 34,338.57 is: 51,513.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,017.65 : 115,539.62 = 34,338.57 : x
  2. Step 2: Convert to fraction form
    77,017.65/115,539.62 = 34,338.57/x
  3. Step 3: Cross multiply
    77,017.65x = 115,539.62 × 34,338.57
  4. Step 4: Simplify right side
    77,017.65x = 3,967,465,329.14
  5. Step 5: Solve for x
    x = 3,967,465,329.14/77,017.65
  6. Step 6: Final answer
    x = 51,513.72

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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.