Home / 49,077.34-67,718.57-28,931.42

Finding the Fourth Proportional to 49,077.34, 67,718.57 and 28,931.42

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Solution

The fourth proportional to 49,077.34, 67,718.57 and 28,931.42 is: 39,920.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,077.34 : 67,718.57 = 28,931.42 : x
  2. Step 2: Convert to fraction form
    49,077.34/67,718.57 = 28,931.42/x
  3. Step 3: Cross multiply
    49,077.34x = 67,718.57 × 28,931.42
  4. Step 4: Simplify right side
    49,077.34x = 1,959,194,415.11
  5. Step 5: Solve for x
    x = 1,959,194,415.11/49,077.34
  6. Step 6: Final answer
    x = 39,920.55

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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.