Home / 77,611.60-116,320-33,186.12

Finding the Fourth Proportional to 77,611.60, 116,320 and 33,186.12

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Solution

The fourth proportional to 77,611.60, 116,320 and 33,186.12 is: 49,737.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,611.60 : 116,320 = 33,186.12 : x
  2. Step 2: Convert to fraction form
    77,611.60/116,320 = 33,186.12/x
  3. Step 3: Cross multiply
    77,611.60x = 116,320 × 33,186.12
  4. Step 4: Simplify right side
    77,611.60x = 3,860,209,478.40
  5. Step 5: Solve for x
    x = 3,860,209,478.40/77,611.60
  6. Step 6: Final answer
    x = 49,737.53

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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.