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Finding the Fourth Proportional to 79,147.44, 109,222.44 and 45,155.04

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Solution

The fourth proportional to 79,147.44, 109,222.44 and 45,155.04 is: 62,313.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,147.44 : 109,222.44 = 45,155.04 : x
  2. Step 2: Convert to fraction form
    79,147.44/109,222.44 = 45,155.04/x
  3. Step 3: Cross multiply
    79,147.44x = 109,222.44 × 45,155.04
  4. Step 4: Simplify right side
    79,147.44x = 4,931,943,647.10
  5. Step 5: Solve for x
    x = 4,931,943,647.10/79,147.44
  6. Step 6: Final answer
    x = 62,313.37

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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.