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Finding the Fourth Proportional to 79,509.63, 109,610.35 and 63,234.24

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Solution

The fourth proportional to 79,509.63, 109,610.35 and 63,234.24 is: 87,173.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,509.63 : 109,610.35 = 63,234.24 : x
  2. Step 2: Convert to fraction form
    79,509.63/109,610.35 = 63,234.24/x
  3. Step 3: Cross multiply
    79,509.63x = 109,610.35 × 63,234.24
  4. Step 4: Simplify right side
    79,509.63x = 6,931,127,800.87
  5. Step 5: Solve for x
    x = 6,931,127,800.87/79,509.63
  6. Step 6: Final answer
    x = 87,173.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.