Home / 48,880.32-67,443.12-28,730.40

Finding the Fourth Proportional to 48,880.32, 67,443.12 and 28,730.40

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Solution

The fourth proportional to 48,880.32, 67,443.12 and 28,730.40 is: 39,641.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,880.32 : 67,443.12 = 28,730.40 : x
  2. Step 2: Convert to fraction form
    48,880.32/67,443.12 = 28,730.40/x
  3. Step 3: Cross multiply
    48,880.32x = 67,443.12 × 28,730.40
  4. Step 4: Simplify right side
    48,880.32x = 1,937,667,814.85
  5. Step 5: Solve for x
    x = 1,937,667,814.85/48,880.32
  6. Step 6: Final answer
    x = 39,641.06

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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.