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Finding the Fourth Proportional to 79,378.74, 109,552.77 and 45,844.74

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Solution

The fourth proportional to 79,378.74, 109,552.77 and 45,844.74 is: 63,271.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,378.74 : 109,552.77 = 45,844.74 : x
  2. Step 2: Convert to fraction form
    79,378.74/109,552.77 = 45,844.74/x
  3. Step 3: Cross multiply
    79,378.74x = 109,552.77 × 45,844.74
  4. Step 4: Simplify right side
    79,378.74x = 5,022,418,256.93
  5. Step 5: Solve for x
    x = 5,022,418,256.93/79,378.74
  6. Step 6: Final answer
    x = 63,271.58

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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.