Home / 66,239.34-99,402.78-31,189.02

Finding the Fourth Proportional to 66,239.34, 99,402.78 and 31,189.02

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Solution

The fourth proportional to 66,239.34, 99,402.78 and 31,189.02 is: 46,804.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,239.34 : 99,402.78 = 31,189.02 : x
  2. Step 2: Convert to fraction form
    66,239.34/99,402.78 = 31,189.02/x
  3. Step 3: Cross multiply
    66,239.34x = 99,402.78 × 31,189.02
  4. Step 4: Simplify right side
    66,239.34x = 3,100,275,293.48
  5. Step 5: Solve for x
    x = 3,100,275,293.48/66,239.34
  6. Step 6: Final answer
    x = 46,804.14

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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.