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Finding the Fourth Proportional to 56,234.80, 84,352.20 and 54,047.80

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Solution

The fourth proportional to 56,234.80, 84,352.20 and 54,047.80 is: 81,071.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,234.80 : 84,352.20 = 54,047.80 : x
  2. Step 2: Convert to fraction form
    56,234.80/84,352.20 = 54,047.80/x
  3. Step 3: Cross multiply
    56,234.80x = 84,352.20 × 54,047.80
  4. Step 4: Simplify right side
    56,234.80x = 4,559,050,835.16
  5. Step 5: Solve for x
    x = 4,559,050,835.16/56,234.80
  6. Step 6: Final answer
    x = 81,071.70

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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.