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Finding the Fourth Proportional to 61,209.80, 91,814.70 and 60,626.60

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Solution

The fourth proportional to 61,209.80, 91,814.70 and 60,626.60 is: 90,939.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,209.80 : 91,814.70 = 60,626.60 : x
  2. Step 2: Convert to fraction form
    61,209.80/91,814.70 = 60,626.60/x
  3. Step 3: Cross multiply
    61,209.80x = 91,814.70 × 60,626.60
  4. Step 4: Simplify right side
    61,209.80x = 5,566,413,091.02
  5. Step 5: Solve for x
    x = 5,566,413,091.02/61,209.80
  6. Step 6: Final answer
    x = 90,939.90

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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.