Home / 49,877.98-68,838.20-31,730.47

Finding the Fourth Proportional to 49,877.98, 68,838.20 and 31,730.47

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Solution

The fourth proportional to 49,877.98, 68,838.20 and 31,730.47 is: 43,792.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,877.98 : 68,838.20 = 31,730.47 : x
  2. Step 2: Convert to fraction form
    49,877.98/68,838.20 = 31,730.47/x
  3. Step 3: Cross multiply
    49,877.98x = 68,838.20 × 31,730.47
  4. Step 4: Simplify right side
    49,877.98x = 2,184,268,439.95
  5. Step 5: Solve for x
    x = 2,184,268,439.95/49,877.98
  6. Step 6: Final answer
    x = 43,792.24

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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.