Home / 79,765.06-110,078.30-45,779.75

Finding the Fourth Proportional to 79,765.06, 110,078.30 and 45,779.75

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Solution

The fourth proportional to 79,765.06, 110,078.30 and 45,779.75 is: 63,177.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,765.06 : 110,078.30 = 45,779.75 : x
  2. Step 2: Convert to fraction form
    79,765.06/110,078.30 = 45,779.75/x
  3. Step 3: Cross multiply
    79,765.06x = 110,078.30 × 45,779.75
  4. Step 4: Simplify right side
    79,765.06x = 5,039,357,054.43
  5. Step 5: Solve for x
    x = 5,039,357,054.43/79,765.06
  6. Step 6: Final answer
    x = 63,177.50

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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.