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Finding the Fourth Proportional to 61,253.50, 91,880.25 and 19,700.50

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Solution

The fourth proportional to 61,253.50, 91,880.25 and 19,700.50 is: 29,550.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,253.50 : 91,880.25 = 19,700.50 : x
  2. Step 2: Convert to fraction form
    61,253.50/91,880.25 = 19,700.50/x
  3. Step 3: Cross multiply
    61,253.50x = 91,880.25 × 19,700.50
  4. Step 4: Simplify right side
    61,253.50x = 1,810,086,865.13
  5. Step 5: Solve for x
    x = 1,810,086,865.13/61,253.50
  6. Step 6: Final answer
    x = 29,550.75

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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.