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Finding the Fourth Proportional to 56,447.92, 84,710.76 and 19,511.92

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Solution

The fourth proportional to 56,447.92, 84,710.76 and 19,511.92 is: 29,281.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,447.92 : 84,710.76 = 19,511.92 : x
  2. Step 2: Convert to fraction form
    56,447.92/84,710.76 = 19,511.92/x
  3. Step 3: Cross multiply
    56,447.92x = 84,710.76 × 19,511.92
  4. Step 4: Simplify right side
    56,447.92x = 1,652,869,572.26
  5. Step 5: Solve for x
    x = 1,652,869,572.26/56,447.92
  6. Step 6: Final answer
    x = 29,281.32

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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.