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Finding the Fourth Proportional to 60,168.30, 90,252.45 and 30,643.80

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Solution

The fourth proportional to 60,168.30, 90,252.45 and 30,643.80 is: 45,965.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,168.30 : 90,252.45 = 30,643.80 : x
  2. Step 2: Convert to fraction form
    60,168.30/90,252.45 = 30,643.80/x
  3. Step 3: Cross multiply
    60,168.30x = 90,252.45 × 30,643.80
  4. Step 4: Simplify right side
    60,168.30x = 2,765,678,027.31
  5. Step 5: Solve for x
    x = 2,765,678,027.31/60,168.30
  6. Step 6: Final answer
    x = 45,965.70

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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.