Home / 79,519.93-119,277.15-20,356.11

Finding the Fourth Proportional to 79,519.93, 119,277.15 and 20,356.11

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Solution

The fourth proportional to 79,519.93, 119,277.15 and 20,356.11 is: 30,533.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,519.93 : 119,277.15 = 20,356.11 : x
  2. Step 2: Convert to fraction form
    79,519.93/119,277.15 = 20,356.11/x
  3. Step 3: Cross multiply
    79,519.93x = 119,277.15 × 20,356.11
  4. Step 4: Simplify right side
    79,519.93x = 2,428,018,785.89
  5. Step 5: Solve for x
    x = 2,428,018,785.89/79,519.93
  6. Step 6: Final answer
    x = 30,533.46

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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.