Home / 48,128.18-72,166.21-21,818.57

Finding the Fourth Proportional to 48,128.18, 72,166.21 and 21,818.57

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Solution

The fourth proportional to 48,128.18, 72,166.21 and 21,818.57 is: 32,716.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,128.18 : 72,166.21 = 21,818.57 : x
  2. Step 2: Convert to fraction form
    48,128.18/72,166.21 = 21,818.57/x
  3. Step 3: Cross multiply
    48,128.18x = 72,166.21 × 21,818.57
  4. Step 4: Simplify right side
    48,128.18x = 1,574,563,089.14
  5. Step 5: Solve for x
    x = 1,574,563,089.14/48,128.18
  6. Step 6: Final answer
    x = 32,716.04

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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.