Home / 54,242.14-81,368.56-18,698.78

Finding the Fourth Proportional to 54,242.14, 81,368.56 and 18,698.78

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Solution

The fourth proportional to 54,242.14, 81,368.56 and 18,698.78 is: 28,050.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,242.14 : 81,368.56 = 18,698.78 : x
  2. Step 2: Convert to fraction form
    54,242.14/81,368.56 = 18,698.78/x
  3. Step 3: Cross multiply
    54,242.14x = 81,368.56 × 18,698.78
  4. Step 4: Simplify right side
    54,242.14x = 1,521,492,802.36
  5. Step 5: Solve for x
    x = 1,521,492,802.36/54,242.14
  6. Step 6: Final answer
    x = 28,050.01

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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.