Home / 49,386.19-74,035.55-19,783.78

Finding the Fourth Proportional to 49,386.19, 74,035.55 and 19,783.78

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Solution

The fourth proportional to 49,386.19, 74,035.55 and 19,783.78 is: 29,658.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,386.19 : 74,035.55 = 19,783.78 : x
  2. Step 2: Convert to fraction form
    49,386.19/74,035.55 = 19,783.78/x
  3. Step 3: Cross multiply
    49,386.19x = 74,035.55 × 19,783.78
  4. Step 4: Simplify right side
    49,386.19x = 1,464,703,033.38
  5. Step 5: Solve for x
    x = 1,464,703,033.38/49,386.19
  6. Step 6: Final answer
    x = 29,658.15

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1.5x scale

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.