Home / 78,118.30-117,183.52-25,533.10

Finding the Fourth Proportional to 78,118.30, 117,183.52 and 25,533.10

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Solution

The fourth proportional to 78,118.30, 117,183.52 and 25,533.10 is: 38,301.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,118.30 : 117,183.52 = 25,533.10 : x
  2. Step 2: Convert to fraction form
    78,118.30/117,183.52 = 25,533.10/x
  3. Step 3: Cross multiply
    78,118.30x = 117,183.52 × 25,533.10
  4. Step 4: Simplify right side
    78,118.30x = 2,992,058,534.51
  5. Step 5: Solve for x
    x = 2,992,058,534.51/78,118.30
  6. Step 6: Final answer
    x = 38,301.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.