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Finding the Fourth Proportional to 79,156.52, 109,246.37 and 45,157.17

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Solution

The fourth proportional to 79,156.52, 109,246.37 and 45,157.17 is: 62,322.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,156.52 : 109,246.37 = 45,157.17 : x
  2. Step 2: Convert to fraction form
    79,156.52/109,246.37 = 45,157.17/x
  3. Step 3: Cross multiply
    79,156.52x = 109,246.37 × 45,157.17
  4. Step 4: Simplify right side
    79,156.52x = 4,933,256,676.19
  5. Step 5: Solve for x
    x = 4,933,256,676.19/79,156.52
  6. Step 6: Final answer
    x = 62,322.81

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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.