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Finding the Fourth Proportional to 67,771.60, 101,511.60 and 56,107.60

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Solution

The fourth proportional to 67,771.60, 101,511.60 and 56,107.60 is: 84,040.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,771.60 : 101,511.60 = 56,107.60 : x
  2. Step 2: Convert to fraction form
    67,771.60/101,511.60 = 56,107.60/x
  3. Step 3: Cross multiply
    67,771.60x = 101,511.60 × 56,107.60
  4. Step 4: Simplify right side
    67,771.60x = 5,695,572,248.16
  5. Step 5: Solve for x
    x = 5,695,572,248.16/67,771.60
  6. Step 6: Final answer
    x = 84,040.69

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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.