Home / 66,405.77-91,637.26-36,190.45

Finding the Fourth Proportional to 66,405.77, 91,637.26 and 36,190.45

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Solution

The fourth proportional to 66,405.77, 91,637.26 and 36,190.45 is: 49,941.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,405.77 : 91,637.26 = 36,190.45 : x
  2. Step 2: Convert to fraction form
    66,405.77/91,637.26 = 36,190.45/x
  3. Step 3: Cross multiply
    66,405.77x = 91,637.26 × 36,190.45
  4. Step 4: Simplify right side
    66,405.77x = 3,316,393,676.17
  5. Step 5: Solve for x
    x = 3,316,393,676.17/66,405.77
  6. Step 6: Final answer
    x = 49,941.35

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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.