Home / 49,515.12-68,332.32-30,648.48

Finding the Fourth Proportional to 49,515.12, 68,332.32 and 30,648.48

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Solution

The fourth proportional to 49,515.12, 68,332.32 and 30,648.48 is: 42,295.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,515.12 : 68,332.32 = 30,648.48 : x
  2. Step 2: Convert to fraction form
    49,515.12/68,332.32 = 30,648.48/x
  3. Step 3: Cross multiply
    49,515.12x = 68,332.32 × 30,648.48
  4. Step 4: Simplify right side
    49,515.12x = 2,094,281,742.87
  5. Step 5: Solve for x
    x = 2,094,281,742.87/49,515.12
  6. Step 6: Final answer
    x = 42,295.80

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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.