Home / 76,979.52-106,242.30-45,158.67

Finding the Fourth Proportional to 76,979.52, 106,242.30 and 45,158.67

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Solution

The fourth proportional to 76,979.52, 106,242.30 and 45,158.67 is: 62,325.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,979.52 : 106,242.30 = 45,158.67 : x
  2. Step 2: Convert to fraction form
    76,979.52/106,242.30 = 45,158.67/x
  3. Step 3: Cross multiply
    76,979.52x = 106,242.30 × 45,158.67
  4. Step 4: Simplify right side
    76,979.52x = 4,797,760,965.74
  5. Step 5: Solve for x
    x = 4,797,760,965.74/76,979.52
  6. Step 6: Final answer
    x = 62,325.16

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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.