Home / 49,295.52-68,018.40-30,438.72

Finding the Fourth Proportional to 49,295.52, 68,018.40 and 30,438.72

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Solution

The fourth proportional to 49,295.52, 68,018.40 and 30,438.72 is: 41,999.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,295.52 : 68,018.40 = 30,438.72 : x
  2. Step 2: Convert to fraction form
    49,295.52/68,018.40 = 30,438.72/x
  3. Step 3: Cross multiply
    49,295.52x = 68,018.40 × 30,438.72
  4. Step 4: Simplify right side
    49,295.52x = 2,070,393,032.45
  5. Step 5: Solve for x
    x = 2,070,393,032.45/49,295.52
  6. Step 6: Final answer
    x = 41,999.62

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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.