Home / 56,966.40-85,219.20-51,436.80

Finding the Fourth Proportional to 56,966.40, 85,219.20 and 51,436.80

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Solution

The fourth proportional to 56,966.40, 85,219.20 and 51,436.80 is: 76,947.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,966.40 : 85,219.20 = 51,436.80 : x
  2. Step 2: Convert to fraction form
    56,966.40/85,219.20 = 51,436.80/x
  3. Step 3: Cross multiply
    56,966.40x = 85,219.20 × 51,436.80
  4. Step 4: Simplify right side
    56,966.40x = 4,383,402,946.56
  5. Step 5: Solve for x
    x = 4,383,402,946.56/56,966.40
  6. Step 6: Final answer
    x = 76,947.16

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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.