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Finding the Fourth Proportional to 72,818.01, 100,482.44 and 40,550.19

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Solution

The fourth proportional to 72,818.01, 100,482.44 and 40,550.19 is: 55,955.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,818.01 : 100,482.44 = 40,550.19 : x
  2. Step 2: Convert to fraction form
    72,818.01/100,482.44 = 40,550.19/x
  3. Step 3: Cross multiply
    72,818.01x = 100,482.44 × 40,550.19
  4. Step 4: Simplify right side
    72,818.01x = 4,074,581,531.25
  5. Step 5: Solve for x
    x = 4,074,581,531.25/72,818.01
  6. Step 6: Final answer
    x = 55,955.69

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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.