Home / 76,821.17-115,148.43-39,329.82

Finding the Fourth Proportional to 76,821.17, 115,148.43 and 39,329.82

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Solution

The fourth proportional to 76,821.17, 115,148.43 and 39,329.82 is: 58,952.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,821.17 : 115,148.43 = 39,329.82 : x
  2. Step 2: Convert to fraction form
    76,821.17/115,148.43 = 39,329.82/x
  3. Step 3: Cross multiply
    76,821.17x = 115,148.43 × 39,329.82
  4. Step 4: Simplify right side
    76,821.17x = 4,528,767,025.18
  5. Step 5: Solve for x
    x = 4,528,767,025.18/76,821.17
  6. Step 6: Final answer
    x = 58,952.07

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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.