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Finding the Fourth Proportional to 72,554.76, 100,130.01 and 40,723.65

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Solution

The fourth proportional to 72,554.76, 100,130.01 and 40,723.65 is: 56,201.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,554.76 : 100,130.01 = 40,723.65 : x
  2. Step 2: Convert to fraction form
    72,554.76/100,130.01 = 40,723.65/x
  3. Step 3: Cross multiply
    72,554.76x = 100,130.01 × 40,723.65
  4. Step 4: Simplify right side
    72,554.76x = 4,077,659,481.74
  5. Step 5: Solve for x
    x = 4,077,659,481.74/72,554.76
  6. Step 6: Final answer
    x = 56,201.13

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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.