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Finding the Fourth Proportional to 56,407.66, 84,611.49 and 28,725.10

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Solution

The fourth proportional to 56,407.66, 84,611.49 and 28,725.10 is: 43,087.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,407.66 : 84,611.49 = 28,725.10 : x
  2. Step 2: Convert to fraction form
    56,407.66/84,611.49 = 28,725.10/x
  3. Step 3: Cross multiply
    56,407.66x = 84,611.49 × 28,725.10
  4. Step 4: Simplify right side
    56,407.66x = 2,430,473,511.40
  5. Step 5: Solve for x
    x = 2,430,473,511.40/56,407.66
  6. Step 6: Final answer
    x = 43,087.65

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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.