Home / 49,758.40-74,637.60-28,763.20

Finding the Fourth Proportional to 49,758.40, 74,637.60 and 28,763.20

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Solution

The fourth proportional to 49,758.40, 74,637.60 and 28,763.20 is: 43,144.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,758.40 : 74,637.60 = 28,763.20 : x
  2. Step 2: Convert to fraction form
    49,758.40/74,637.60 = 28,763.20/x
  3. Step 3: Cross multiply
    49,758.40x = 74,637.60 × 28,763.20
  4. Step 4: Simplify right side
    49,758.40x = 2,146,816,216.32
  5. Step 5: Solve for x
    x = 2,146,816,216.32/49,758.40
  6. Step 6: Final answer
    x = 43,144.80

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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.