Home / 49,840.80-74,660.40-31,063.20

Finding the Fourth Proportional to 49,840.80, 74,660.40 and 31,063.20

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Solution

The fourth proportional to 49,840.80, 74,660.40 and 31,063.20 is: 46,531.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,840.80 : 74,660.40 = 31,063.20 : x
  2. Step 2: Convert to fraction form
    49,840.80/74,660.40 = 31,063.20/x
  3. Step 3: Cross multiply
    49,840.80x = 74,660.40 × 31,063.20
  4. Step 4: Simplify right side
    49,840.80x = 2,319,190,937.28
  5. Step 5: Solve for x
    x = 2,319,190,937.28/49,840.80
  6. Step 6: Final answer
    x = 46,531.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.