Home / 79,427.06-109,633.95-51,132.75

Finding the Fourth Proportional to 79,427.06, 109,633.95 and 51,132.75

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Solution

The fourth proportional to 79,427.06, 109,633.95 and 51,132.75 is: 70,579.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,427.06 : 109,633.95 = 51,132.75 : x
  2. Step 2: Convert to fraction form
    79,427.06/109,633.95 = 51,132.75/x
  3. Step 3: Cross multiply
    79,427.06x = 109,633.95 × 51,132.75
  4. Step 4: Simplify right side
    79,427.06x = 5,605,885,356.86
  5. Step 5: Solve for x
    x = 5,605,885,356.86/79,427.06
  6. Step 6: Final answer
    x = 70,579.03

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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.