Home / 77,216.34-115,824.60-30,468

Finding the Fourth Proportional to 77,216.34, 115,824.60 and 30,468

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Solution

The fourth proportional to 77,216.34, 115,824.60 and 30,468 is: 45,702.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,216.34 : 115,824.60 = 30,468 : x
  2. Step 2: Convert to fraction form
    77,216.34/115,824.60 = 30,468/x
  3. Step 3: Cross multiply
    77,216.34x = 115,824.60 × 30,468
  4. Step 4: Simplify right side
    77,216.34x = 3,528,943,912.80
  5. Step 5: Solve for x
    x = 3,528,943,912.80/77,216.34
  6. Step 6: Final answer
    x = 45,702.04

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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.