Home / 51,148.24-76,691.64-19,998.16

Finding the Fourth Proportional to 51,148.24, 76,691.64 and 19,998.16

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Solution

The fourth proportional to 51,148.24, 76,691.64 and 19,998.16 is: 29,985.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,148.24 : 76,691.64 = 19,998.16 : x
  2. Step 2: Convert to fraction form
    51,148.24/76,691.64 = 19,998.16/x
  3. Step 3: Cross multiply
    51,148.24x = 76,691.64 × 19,998.16
  4. Step 4: Simplify right side
    51,148.24x = 1,533,691,687.38
  5. Step 5: Solve for x
    x = 1,533,691,687.38/51,148.24
  6. Step 6: Final answer
    x = 29,985.23

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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.