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Finding the Fourth Proportional to 65,727.60, 98,602.20 and 28,305.60

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Solution

The fourth proportional to 65,727.60, 98,602.20 and 28,305.60 is: 42,463.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,727.60 : 98,602.20 = 28,305.60 : x
  2. Step 2: Convert to fraction form
    65,727.60/98,602.20 = 28,305.60/x
  3. Step 3: Cross multiply
    65,727.60x = 98,602.20 × 28,305.60
  4. Step 4: Simplify right side
    65,727.60x = 2,790,994,432.32
  5. Step 5: Solve for x
    x = 2,790,994,432.32/65,727.60
  6. Step 6: Final answer
    x = 42,463.05

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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.