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Finding the Fourth Proportional to 67,899.60, 101,849.40 and 42,967.80

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Solution

The fourth proportional to 67,899.60, 101,849.40 and 42,967.80 is: 64,451.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,899.60 : 101,849.40 = 42,967.80 : x
  2. Step 2: Convert to fraction form
    67,899.60/101,849.40 = 42,967.80/x
  3. Step 3: Cross multiply
    67,899.60x = 101,849.40 × 42,967.80
  4. Step 4: Simplify right side
    67,899.60x = 4,376,244,649.32
  5. Step 5: Solve for x
    x = 4,376,244,649.32/67,899.60
  6. Step 6: Final answer
    x = 64,451.70

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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.