Home / 49,399.60-74,063.40-19,802.80

Finding the Fourth Proportional to 49,399.60, 74,063.40 and 19,802.80

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Solution

The fourth proportional to 49,399.60, 74,063.40 and 19,802.80 is: 29,689.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,399.60 : 74,063.40 = 19,802.80 : x
  2. Step 2: Convert to fraction form
    49,399.60/74,063.40 = 19,802.80/x
  3. Step 3: Cross multiply
    49,399.60x = 74,063.40 × 19,802.80
  4. Step 4: Simplify right side
    49,399.60x = 1,466,662,697.52
  5. Step 5: Solve for x
    x = 1,466,662,697.52/49,399.60
  6. Step 6: Final answer
    x = 29,689.77

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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.