Home / 86,907.88-130,280.58-30,716.56

Finding the Fourth Proportional to 86,907.88, 130,280.58 and 30,716.56

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Solution

The fourth proportional to 86,907.88, 130,280.58 and 30,716.56 is: 46,046.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,907.88 : 130,280.58 = 30,716.56 : x
  2. Step 2: Convert to fraction form
    86,907.88/130,280.58 = 30,716.56/x
  3. Step 3: Cross multiply
    86,907.88x = 130,280.58 × 30,716.56
  4. Step 4: Simplify right side
    86,907.88x = 4,001,771,252.40
  5. Step 5: Solve for x
    x = 4,001,771,252.40/86,907.88
  6. Step 6: Final answer
    x = 46,046.13

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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.