Home / 51,146.24-76,688.64-19,996.16

Finding the Fourth Proportional to 51,146.24, 76,688.64 and 19,996.16

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Solution

The fourth proportional to 51,146.24, 76,688.64 and 19,996.16 is: 29,982.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,146.24 : 76,688.64 = 19,996.16 : x
  2. Step 2: Convert to fraction form
    51,146.24/76,688.64 = 19,996.16/x
  3. Step 3: Cross multiply
    51,146.24x = 76,688.64 × 19,996.16
  4. Step 4: Simplify right side
    51,146.24x = 1,533,478,315.62
  5. Step 5: Solve for x
    x = 1,533,478,315.62/51,146.24
  6. Step 6: Final answer
    x = 29,982.23

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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.