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Finding the Fourth Proportional to 56,007.20, 84,010.80 and 52,551.20

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Solution

The fourth proportional to 56,007.20, 84,010.80 and 52,551.20 is: 78,826.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,007.20 : 84,010.80 = 52,551.20 : x
  2. Step 2: Convert to fraction form
    56,007.20/84,010.80 = 52,551.20/x
  3. Step 3: Cross multiply
    56,007.20x = 84,010.80 × 52,551.20
  4. Step 4: Simplify right side
    56,007.20x = 4,414,868,352.96
  5. Step 5: Solve for x
    x = 4,414,868,352.96/56,007.20
  6. Step 6: Final answer
    x = 78,826.80

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1.5x scale

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.