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Finding the Fourth Proportional to 61,012.62, 91,497.47 and 18,305.31

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Solution

The fourth proportional to 61,012.62, 91,497.47 and 18,305.31 is: 27,451.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,012.62 : 91,497.47 = 18,305.31 : x
  2. Step 2: Convert to fraction form
    61,012.62/91,497.47 = 18,305.31/x
  3. Step 3: Cross multiply
    61,012.62x = 91,497.47 × 18,305.31
  4. Step 4: Simplify right side
    61,012.62x = 1,674,889,552.57
  5. Step 5: Solve for x
    x = 1,674,889,552.57/61,012.62
  6. Step 6: Final answer
    x = 27,451.53

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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.