Home / 56,303.40-77,284.78-49,787.21

Finding the Fourth Proportional to 56,303.40, 77,284.78 and 49,787.21

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Solution

The fourth proportional to 56,303.40, 77,284.78 and 49,787.21 is: 68,340.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,303.40 : 77,284.78 = 49,787.21 : x
  2. Step 2: Convert to fraction form
    56,303.40/77,284.78 = 49,787.21/x
  3. Step 3: Cross multiply
    56,303.40x = 77,284.78 × 49,787.21
  4. Step 4: Simplify right side
    56,303.40x = 3,847,793,485.73
  5. Step 5: Solve for x
    x = 3,847,793,485.73/56,303.40
  6. Step 6: Final answer
    x = 68,340.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.