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Finding the Fourth Proportional to 79,004.55, 109,018.08 and 47,169.12

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Solution

The fourth proportional to 79,004.55, 109,018.08 and 47,169.12 is: 65,088.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,004.55 : 109,018.08 = 47,169.12 : x
  2. Step 2: Convert to fraction form
    79,004.55/109,018.08 = 47,169.12/x
  3. Step 3: Cross multiply
    79,004.55x = 109,018.08 × 47,169.12
  4. Step 4: Simplify right side
    79,004.55x = 5,142,286,897.69
  5. Step 5: Solve for x
    x = 5,142,286,897.69/79,004.55
  6. Step 6: Final answer
    x = 65,088.49

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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.