Home / 98,007.76-135,246.72-57,723.20

Finding the Fourth Proportional to 98,007.76, 135,246.72 and 57,723.20

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Solution

The fourth proportional to 98,007.76, 135,246.72 and 57,723.20 is: 79,655.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,007.76 : 135,246.72 = 57,723.20 : x
  2. Step 2: Convert to fraction form
    98,007.76/135,246.72 = 57,723.20/x
  3. Step 3: Cross multiply
    98,007.76x = 135,246.72 × 57,723.20
  4. Step 4: Simplify right side
    98,007.76x = 7,806,873,467.90
  5. Step 5: Solve for x
    x = 7,806,873,467.90/98,007.76
  6. Step 6: Final answer
    x = 79,655.67

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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.