Home / 48,928.08-67,520.88-28,785.72

Finding the Fourth Proportional to 48,928.08, 67,520.88 and 28,785.72

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Solution

The fourth proportional to 48,928.08, 67,520.88 and 28,785.72 is: 39,724.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,928.08 : 67,520.88 = 28,785.72 : x
  2. Step 2: Convert to fraction form
    48,928.08/67,520.88 = 28,785.72/x
  3. Step 3: Cross multiply
    48,928.08x = 67,520.88 × 28,785.72
  4. Step 4: Simplify right side
    48,928.08x = 1,943,637,145.83
  5. Step 5: Solve for x
    x = 1,943,637,145.83/48,928.08
  6. Step 6: Final answer
    x = 39,724.37

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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.