Home / 76,376.08-114,580.76-31,397.76

Finding the Fourth Proportional to 76,376.08, 114,580.76 and 31,397.76

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Solution

The fourth proportional to 76,376.08, 114,580.76 and 31,397.76 is: 47,103.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,376.08 : 114,580.76 = 31,397.76 : x
  2. Step 2: Convert to fraction form
    76,376.08/114,580.76 = 31,397.76/x
  3. Step 3: Cross multiply
    76,376.08x = 114,580.76 × 31,397.76
  4. Step 4: Simplify right side
    76,376.08x = 3,597,579,203.10
  5. Step 5: Solve for x
    x = 3,597,579,203.10/76,376.08
  6. Step 6: Final answer
    x = 47,103.48

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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.