Home / 78,327.09-108,147.56-48,152.87

Finding the Fourth Proportional to 78,327.09, 108,147.56 and 48,152.87

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Solution

The fourth proportional to 78,327.09, 108,147.56 and 48,152.87 is: 66,485.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,327.09 : 108,147.56 = 48,152.87 : x
  2. Step 2: Convert to fraction form
    78,327.09/108,147.56 = 48,152.87/x
  3. Step 3: Cross multiply
    78,327.09x = 108,147.56 × 48,152.87
  4. Step 4: Simplify right side
    78,327.09x = 5,207,614,616.00
  5. Step 5: Solve for x
    x = 5,207,614,616.00/78,327.09
  6. Step 6: Final answer
    x = 66,485.49

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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.