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Finding the Fourth Proportional to 79,276.48, 109,400.64 and 45,741.76

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Solution

The fourth proportional to 79,276.48, 109,400.64 and 45,741.76 is: 63,123.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,276.48 : 109,400.64 = 45,741.76 : x
  2. Step 2: Convert to fraction form
    79,276.48/109,400.64 = 45,741.76/x
  3. Step 3: Cross multiply
    79,276.48x = 109,400.64 × 45,741.76
  4. Step 4: Simplify right side
    79,276.48x = 5,004,177,818.73
  5. Step 5: Solve for x
    x = 5,004,177,818.73/79,276.48
  6. Step 6: Final answer
    x = 63,123.11

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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.