Home / 45,480.60-68,191.56-19,178.28

Finding the Fourth Proportional to 45,480.60, 68,191.56 and 19,178.28

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Solution

The fourth proportional to 45,480.60, 68,191.56 and 19,178.28 is: 28,755.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,480.60 : 68,191.56 = 19,178.28 : x
  2. Step 2: Convert to fraction form
    45,480.60/68,191.56 = 19,178.28/x
  3. Step 3: Cross multiply
    45,480.60x = 68,191.56 × 19,178.28
  4. Step 4: Simplify right side
    45,480.60x = 1,307,796,831.32
  5. Step 5: Solve for x
    x = 1,307,796,831.32/45,480.60
  6. Step 6: Final answer
    x = 28,755.05

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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.