Home / 51,487.80-77,247.29-21,516.59

Finding the Fourth Proportional to 51,487.80, 77,247.29 and 21,516.59

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Solution

The fourth proportional to 51,487.80, 77,247.29 and 21,516.59 is: 32,281.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,487.80 : 77,247.29 = 21,516.59 : x
  2. Step 2: Convert to fraction form
    51,487.80/77,247.29 = 21,516.59/x
  3. Step 3: Cross multiply
    51,487.80x = 77,247.29 × 21,516.59
  4. Step 4: Simplify right side
    51,487.80x = 1,662,097,935.10
  5. Step 5: Solve for x
    x = 1,662,097,935.10/51,487.80
  6. Step 6: Final answer
    x = 32,281.39

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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.