Home / 56,028.15-77,406.57-47,618.28

Finding the Fourth Proportional to 56,028.15, 77,406.57 and 47,618.28

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Solution

The fourth proportional to 56,028.15, 77,406.57 and 47,618.28 is: 65,787.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,028.15 : 77,406.57 = 47,618.28 : x
  2. Step 2: Convert to fraction form
    56,028.15/77,406.57 = 47,618.28/x
  3. Step 3: Cross multiply
    56,028.15x = 77,406.57 × 47,618.28
  4. Step 4: Simplify right side
    56,028.15x = 3,685,967,724.10
  5. Step 5: Solve for x
    x = 3,685,967,724.10/56,028.15
  6. Step 6: Final answer
    x = 65,787.78

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1.5x scale

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.