Home / 77,576.95-116,356.70-21,425.04

Finding the Fourth Proportional to 77,576.95, 116,356.70 and 21,425.04

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Solution

The fourth proportional to 77,576.95, 116,356.70 and 21,425.04 is: 32,135.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,576.95 : 116,356.70 = 21,425.04 : x
  2. Step 2: Convert to fraction form
    77,576.95/116,356.70 = 21,425.04/x
  3. Step 3: Cross multiply
    77,576.95x = 116,356.70 × 21,425.04
  4. Step 4: Simplify right side
    77,576.95x = 2,492,947,005.33
  5. Step 5: Solve for x
    x = 2,492,947,005.33/77,576.95
  6. Step 6: Final answer
    x = 32,135.15

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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.