Home / 74,636.78-103,019.92-49,161.74

Finding the Fourth Proportional to 74,636.78, 103,019.92 and 49,161.74

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Solution

The fourth proportional to 74,636.78, 103,019.92 and 49,161.74 is: 67,857.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,636.78 : 103,019.92 = 49,161.74 : x
  2. Step 2: Convert to fraction form
    74,636.78/103,019.92 = 49,161.74/x
  3. Step 3: Cross multiply
    74,636.78x = 103,019.92 × 49,161.74
  4. Step 4: Simplify right side
    74,636.78x = 5,064,637,883.86
  5. Step 5: Solve for x
    x = 5,064,637,883.86/74,636.78
  6. Step 6: Final answer
    x = 67,857.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.