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Finding the Fourth Proportional to 79,166.67, 109,222.89 and 45,150.70

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Solution

The fourth proportional to 79,166.67, 109,222.89 and 45,150.70 is: 62,292.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,166.67 : 109,222.89 = 45,150.70 : x
  2. Step 2: Convert to fraction form
    79,166.67/109,222.89 = 45,150.70/x
  3. Step 3: Cross multiply
    79,166.67x = 109,222.89 × 45,150.70
  4. Step 4: Simplify right side
    79,166.67x = 4,931,489,939.52
  5. Step 5: Solve for x
    x = 4,931,489,939.52/79,166.67
  6. Step 6: Final answer
    x = 62,292.50

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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.