Home / 49,387.19-74,037.05-19,784.78

Finding the Fourth Proportional to 49,387.19, 74,037.05 and 19,784.78

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Solution

The fourth proportional to 49,387.19, 74,037.05 and 19,784.78 is: 29,659.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,387.19 : 74,037.05 = 19,784.78 : x
  2. Step 2: Convert to fraction form
    49,387.19/74,037.05 = 19,784.78/x
  3. Step 3: Cross multiply
    49,387.19x = 74,037.05 × 19,784.78
  4. Step 4: Simplify right side
    49,387.19x = 1,464,806,746.10
  5. Step 5: Solve for x
    x = 1,464,806,746.10/49,387.19
  6. Step 6: Final answer
    x = 29,659.65

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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.