Home / 61,165.11-91,725.65-21,173.23

Finding the Fourth Proportional to 61,165.11, 91,725.65 and 21,173.23

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Solution

The fourth proportional to 61,165.11, 91,725.65 and 21,173.23 is: 31,752.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,165.11 : 91,725.65 = 21,173.23 : x
  2. Step 2: Convert to fraction form
    61,165.11/91,725.65 = 21,173.23/x
  3. Step 3: Cross multiply
    61,165.11x = 91,725.65 × 21,173.23
  4. Step 4: Simplify right side
    61,165.11x = 1,942,127,719.86
  5. Step 5: Solve for x
    x = 1,942,127,719.86/61,165.11
  6. Step 6: Final answer
    x = 31,752.22

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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.