Home / 76,349.30-114,490.40-31,339.76

Finding the Fourth Proportional to 76,349.30, 114,490.40 and 31,339.76

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Solution

The fourth proportional to 76,349.30, 114,490.40 and 31,339.76 is: 46,995.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,349.30 : 114,490.40 = 31,339.76 : x
  2. Step 2: Convert to fraction form
    76,349.30/114,490.40 = 31,339.76/x
  3. Step 3: Cross multiply
    76,349.30x = 114,490.40 × 31,339.76
  4. Step 4: Simplify right side
    76,349.30x = 3,588,101,658.30
  5. Step 5: Solve for x
    x = 3,588,101,658.30/76,349.30
  6. Step 6: Final answer
    x = 46,995.87

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1.5x scale

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.