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Finding the Fourth Proportional to 91,564, 126,352.04 and 50,726.72

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Solution

The fourth proportional to 91,564, 126,352.04 and 50,726.72 is: 69,999.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,564 : 126,352.04 = 50,726.72 : x
  2. Step 2: Convert to fraction form
    91,564/126,352.04 = 50,726.72/x
  3. Step 3: Cross multiply
    91,564x = 126,352.04 × 50,726.72
  4. Step 4: Simplify right side
    91,564x = 6,409,424,554.51
  5. Step 5: Solve for x
    x = 6,409,424,554.51/91,564
  6. Step 6: Final answer
    x = 69,999.39

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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.