Home / 49,780.80-68,706.90-28,573.92

Finding the Fourth Proportional to 49,780.80, 68,706.90 and 28,573.92

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Solution

The fourth proportional to 49,780.80, 68,706.90 and 28,573.92 is: 39,437.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,780.80 : 68,706.90 = 28,573.92 : x
  2. Step 2: Convert to fraction form
    49,780.80/68,706.90 = 28,573.92/x
  3. Step 3: Cross multiply
    49,780.80x = 68,706.90 × 28,573.92
  4. Step 4: Simplify right side
    49,780.80x = 1,963,225,464.05
  5. Step 5: Solve for x
    x = 1,963,225,464.05/49,780.80
  6. Step 6: Final answer
    x = 39,437.40

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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.