Home / 48,722.71-72,872.91-28,684.45

Finding the Fourth Proportional to 48,722.71, 72,872.91 and 28,684.45

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Solution

The fourth proportional to 48,722.71, 72,872.91 and 28,684.45 is: 42,902.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,722.71 : 72,872.91 = 28,684.45 : x
  2. Step 2: Convert to fraction form
    48,722.71/72,872.91 = 28,684.45/x
  3. Step 3: Cross multiply
    48,722.71x = 72,872.91 × 28,684.45
  4. Step 4: Simplify right side
    48,722.71x = 2,090,319,343.25
  5. Step 5: Solve for x
    x = 2,090,319,343.25/48,722.71
  6. Step 6: Final answer
    x = 42,902.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.