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Finding the Fourth Proportional to 72,530.69, 100,094.08 and 40,701.95

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Solution

The fourth proportional to 72,530.69, 100,094.08 and 40,701.95 is: 56,169.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,530.69 : 100,094.08 = 40,701.95 : x
  2. Step 2: Convert to fraction form
    72,530.69/100,094.08 = 40,701.95/x
  3. Step 3: Cross multiply
    72,530.69x = 100,094.08 × 40,701.95
  4. Step 4: Simplify right side
    72,530.69x = 4,074,023,738.99
  5. Step 5: Solve for x
    x = 4,074,023,738.99/72,530.69
  6. Step 6: Final answer
    x = 56,169.65

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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.