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Finding the Fourth Proportional to 56,751.40, 85,141.02 and 28,602.28

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Solution

The fourth proportional to 56,751.40, 85,141.02 and 28,602.28 is: 42,910.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,751.40 : 85,141.02 = 28,602.28 : x
  2. Step 2: Convert to fraction form
    56,751.40/85,141.02 = 28,602.28/x
  3. Step 3: Cross multiply
    56,751.40x = 85,141.02 × 28,602.28
  4. Step 4: Simplify right side
    56,751.40x = 2,435,227,293.53
  5. Step 5: Solve for x
    x = 2,435,227,293.53/56,751.40
  6. Step 6: Final answer
    x = 42,910.44

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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.