Home / 79,140.32-118,716.63-22,981.35

Finding the Fourth Proportional to 79,140.32, 118,716.63 and 22,981.35

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Solution

The fourth proportional to 79,140.32, 118,716.63 and 22,981.35 is: 34,473.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,140.32 : 118,716.63 = 22,981.35 : x
  2. Step 2: Convert to fraction form
    79,140.32/118,716.63 = 22,981.35/x
  3. Step 3: Cross multiply
    79,140.32x = 118,716.63 × 22,981.35
  4. Step 4: Simplify right side
    79,140.32x = 2,728,268,783.86
  5. Step 5: Solve for x
    x = 2,728,268,783.86/79,140.32
  6. Step 6: Final answer
    x = 34,473.82

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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.