Home / 66,429.81-99,427.10-36,398.25

Finding the Fourth Proportional to 66,429.81, 99,427.10 and 36,398.25

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Solution

The fourth proportional to 66,429.81, 99,427.10 and 36,398.25 is: 54,478.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,429.81 : 99,427.10 = 36,398.25 : x
  2. Step 2: Convert to fraction form
    66,429.81/99,427.10 = 36,398.25/x
  3. Step 3: Cross multiply
    66,429.81x = 99,427.10 × 36,398.25
  4. Step 4: Simplify right side
    66,429.81x = 3,618,972,260.58
  5. Step 5: Solve for x
    x = 3,618,972,260.58/66,429.81
  6. Step 6: Final answer
    x = 54,478.14

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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.