Home / 65,267.14-90,072.21-36,978.34

Finding the Fourth Proportional to 65,267.14, 90,072.21 and 36,978.34

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Solution

The fourth proportional to 65,267.14, 90,072.21 and 36,978.34 is: 51,032.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,267.14 : 90,072.21 = 36,978.34 : x
  2. Step 2: Convert to fraction form
    65,267.14/90,072.21 = 36,978.34/x
  3. Step 3: Cross multiply
    65,267.14x = 90,072.21 × 36,978.34
  4. Step 4: Simplify right side
    65,267.14x = 3,330,720,805.93
  5. Step 5: Solve for x
    x = 3,330,720,805.93/65,267.14
  6. Step 6: Final answer
    x = 51,032.12

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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.