Home / 79,041.76-117,999.20-76,273.18

Finding the Fourth Proportional to 79,041.76, 117,999.20 and 76,273.18

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Solution

The fourth proportional to 79,041.76, 117,999.20 and 76,273.18 is: 113,866.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,041.76 : 117,999.20 = 76,273.18 : x
  2. Step 2: Convert to fraction form
    79,041.76/117,999.20 = 76,273.18/x
  3. Step 3: Cross multiply
    79,041.76x = 117,999.20 × 76,273.18
  4. Step 4: Simplify right side
    79,041.76x = 9,000,174,221.46
  5. Step 5: Solve for x
    x = 9,000,174,221.46/79,041.76
  6. Step 6: Final answer
    x = 113,866.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.