Home / 79,214.78-109,316.38-47,391.16

Finding the Fourth Proportional to 79,214.78, 109,316.38 and 47,391.16

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Solution

The fourth proportional to 79,214.78, 109,316.38 and 47,391.16 is: 65,399.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,214.78 : 109,316.38 = 47,391.16 : x
  2. Step 2: Convert to fraction form
    79,214.78/109,316.38 = 47,391.16/x
  3. Step 3: Cross multiply
    79,214.78x = 109,316.38 × 47,391.16
  4. Step 4: Simplify right side
    79,214.78x = 5,180,630,055.20
  5. Step 5: Solve for x
    x = 5,180,630,055.20/79,214.78
  6. Step 6: Final answer
    x = 65,399.79

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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.