Home / 49,911.90-68,885.36-28,690.71

Finding the Fourth Proportional to 49,911.90, 68,885.36 and 28,690.71

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Solution

The fourth proportional to 49,911.90, 68,885.36 and 28,690.71 is: 39,597.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,911.90 : 68,885.36 = 28,690.71 : x
  2. Step 2: Convert to fraction form
    49,911.90/68,885.36 = 28,690.71/x
  3. Step 3: Cross multiply
    49,911.90x = 68,885.36 × 28,690.71
  4. Step 4: Simplify right side
    49,911.90x = 1,976,369,743.55
  5. Step 5: Solve for x
    x = 1,976,369,743.55/49,911.90
  6. Step 6: Final answer
    x = 39,597.17

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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.