Home / 66,456.91-91,709.40-36,242.47

Finding the Fourth Proportional to 66,456.91, 91,709.40 and 36,242.47

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Solution

The fourth proportional to 66,456.91, 91,709.40 and 36,242.47 is: 50,013.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,456.91 : 91,709.40 = 36,242.47 : x
  2. Step 2: Convert to fraction form
    66,456.91/91,709.40 = 36,242.47/x
  3. Step 3: Cross multiply
    66,456.91x = 91,709.40 × 36,242.47
  4. Step 4: Simplify right side
    66,456.91x = 3,323,775,178.22
  5. Step 5: Solve for x
    x = 3,323,775,178.22/66,456.91
  6. Step 6: Final answer
    x = 50,013.99

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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.