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Finding the Fourth Proportional to 56,970.60, 78,618.60 and 32,770.86

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Solution

The fourth proportional to 56,970.60, 78,618.60 and 32,770.86 is: 45,223.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,970.60 : 78,618.60 = 32,770.86 : x
  2. Step 2: Convert to fraction form
    56,970.60/78,618.60 = 32,770.86/x
  3. Step 3: Cross multiply
    56,970.60x = 78,618.60 × 32,770.86
  4. Step 4: Simplify right side
    56,970.60x = 2,576,399,134.00
  5. Step 5: Solve for x
    x = 2,576,399,134.00/56,970.60
  6. Step 6: Final answer
    x = 45,223.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.