Home / 61,004.85-91,515.62-18,888.39

Finding the Fourth Proportional to 61,004.85, 91,515.62 and 18,888.39

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Solution

The fourth proportional to 61,004.85, 91,515.62 and 18,888.39 is: 28,335.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,004.85 : 91,515.62 = 18,888.39 : x
  2. Step 2: Convert to fraction form
    61,004.85/91,515.62 = 18,888.39/x
  3. Step 3: Cross multiply
    61,004.85x = 91,515.62 × 18,888.39
  4. Step 4: Simplify right side
    61,004.85x = 1,728,582,768.87
  5. Step 5: Solve for x
    x = 1,728,582,768.87/61,004.85
  6. Step 6: Final answer
    x = 28,335.17

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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.