Home / 78,799.86-118,199.79-33,811.45

Finding the Fourth Proportional to 78,799.86, 118,199.79 and 33,811.45

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Solution

The fourth proportional to 78,799.86, 118,199.79 and 33,811.45 is: 50,717.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,799.86 : 118,199.79 = 33,811.45 : x
  2. Step 2: Convert to fraction form
    78,799.86/118,199.79 = 33,811.45/x
  3. Step 3: Cross multiply
    78,799.86x = 118,199.79 × 33,811.45
  4. Step 4: Simplify right side
    78,799.86x = 3,996,505,994.10
  5. Step 5: Solve for x
    x = 3,996,505,994.10/78,799.86
  6. Step 6: Final answer
    x = 50,717.17

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1.5x scale

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.