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Finding the Fourth Proportional to 32,499.76, 48,749.80 and 9,126.40

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Solution

The fourth proportional to 32,499.76, 48,749.80 and 9,126.40 is: 13,689.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,499.76 : 48,749.80 = 9,126.40 : x
  2. Step 2: Convert to fraction form
    32,499.76/48,749.80 = 9,126.40/x
  3. Step 3: Cross multiply
    32,499.76x = 48,749.80 × 9,126.40
  4. Step 4: Simplify right side
    32,499.76x = 444,910,174.72
  5. Step 5: Solve for x
    x = 444,910,174.72/32,499.76
  6. Step 6: Final answer
    x = 13,689.64

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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.