Home / 72,432.64-108,664-22,511.36

Finding the Fourth Proportional to 72,432.64, 108,664 and 22,511.36

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Solution

The fourth proportional to 72,432.64, 108,664 and 22,511.36 is: 33,771.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,432.64 : 108,664 = 22,511.36 : x
  2. Step 2: Convert to fraction form
    72,432.64/108,664 = 22,511.36/x
  3. Step 3: Cross multiply
    72,432.64x = 108,664 × 22,511.36
  4. Step 4: Simplify right side
    72,432.64x = 2,446,174,423.04
  5. Step 5: Solve for x
    x = 2,446,174,423.04/72,432.64
  6. Step 6: Final answer
    x = 33,771.71

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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.