Home / 66,246.05-91,389.39-39,373.28

Finding the Fourth Proportional to 66,246.05, 91,389.39 and 39,373.28

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Solution

The fourth proportional to 66,246.05, 91,389.39 and 39,373.28 is: 54,317.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,246.05 : 91,389.39 = 39,373.28 : x
  2. Step 2: Convert to fraction form
    66,246.05/91,389.39 = 39,373.28/x
  3. Step 3: Cross multiply
    66,246.05x = 91,389.39 × 39,373.28
  4. Step 4: Simplify right side
    66,246.05x = 3,598,299,844.63
  5. Step 5: Solve for x
    x = 3,598,299,844.63/66,246.05
  6. Step 6: Final answer
    x = 54,317.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.