Home / 49,985.07-68,981.49-28,764.42

Finding the Fourth Proportional to 49,985.07, 68,981.49 and 28,764.42

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Solution

The fourth proportional to 49,985.07, 68,981.49 and 28,764.42 is: 39,696.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,985.07 : 68,981.49 = 28,764.42 : x
  2. Step 2: Convert to fraction form
    49,985.07/68,981.49 = 28,764.42/x
  3. Step 3: Cross multiply
    49,985.07x = 68,981.49 × 28,764.42
  4. Step 4: Simplify right side
    49,985.07x = 1,984,212,550.59
  5. Step 5: Solve for x
    x = 1,984,212,550.59/49,985.07
  6. Step 6: Final answer
    x = 39,696.10

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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.