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Finding the Fourth Proportional to 45,485.52, 68,230.68 and 14,323.20

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Solution

The fourth proportional to 45,485.52, 68,230.68 and 14,323.20 is: 21,485.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,485.52 : 68,230.68 = 14,323.20 : x
  2. Step 2: Convert to fraction form
    45,485.52/68,230.68 = 14,323.20/x
  3. Step 3: Cross multiply
    45,485.52x = 68,230.68 × 14,323.20
  4. Step 4: Simplify right side
    45,485.52x = 977,281,675.78
  5. Step 5: Solve for x
    x = 977,281,675.78/45,485.52
  6. Step 6: Final answer
    x = 21,485.56

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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.