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Finding the Fourth Proportional to 61,156.36, 91,743.69 and 21,710.17

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Solution

The fourth proportional to 61,156.36, 91,743.69 and 21,710.17 is: 32,568.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,156.36 : 91,743.69 = 21,710.17 : x
  2. Step 2: Convert to fraction form
    61,156.36/91,743.69 = 21,710.17/x
  3. Step 3: Cross multiply
    61,156.36x = 91,743.69 × 21,710.17
  4. Step 4: Simplify right side
    61,156.36x = 1,991,771,106.33
  5. Step 5: Solve for x
    x = 1,991,771,106.33/61,156.36
  6. Step 6: Final answer
    x = 32,568.50

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1.5x scale

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.