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Finding the Fourth Proportional to 73,151.45, 100,947.79 and 40,886.82

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Solution

The fourth proportional to 73,151.45, 100,947.79 and 40,886.82 is: 56,423.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,151.45 : 100,947.79 = 40,886.82 : x
  2. Step 2: Convert to fraction form
    73,151.45/100,947.79 = 40,886.82/x
  3. Step 3: Cross multiply
    73,151.45x = 100,947.79 × 40,886.82
  4. Step 4: Simplify right side
    73,151.45x = 4,127,434,016.91
  5. Step 5: Solve for x
    x = 4,127,434,016.91/73,151.45
  6. Step 6: Final answer
    x = 56,423.14

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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.