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Finding the Fourth Proportional to 79,216.79, 109,328.36 and 45,230.13

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Solution

The fourth proportional to 79,216.79, 109,328.36 and 45,230.13 is: 62,422.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,216.79 : 109,328.36 = 45,230.13 : x
  2. Step 2: Convert to fraction form
    79,216.79/109,328.36 = 45,230.13/x
  3. Step 3: Cross multiply
    79,216.79x = 109,328.36 × 45,230.13
  4. Step 4: Simplify right side
    79,216.79x = 4,944,935,709.34
  5. Step 5: Solve for x
    x = 4,944,935,709.34/79,216.79
  6. Step 6: Final answer
    x = 62,422.83

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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.