Home / 74,552.13-102,885.53-42,721.11

Finding the Fourth Proportional to 74,552.13, 102,885.53 and 42,721.11

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Solution

The fourth proportional to 74,552.13, 102,885.53 and 42,721.11 is: 58,957.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,552.13 : 102,885.53 = 42,721.11 : x
  2. Step 2: Convert to fraction form
    74,552.13/102,885.53 = 42,721.11/x
  3. Step 3: Cross multiply
    74,552.13x = 102,885.53 × 42,721.11
  4. Step 4: Simplify right side
    74,552.13x = 4,395,383,830.93
  5. Step 5: Solve for x
    x = 4,395,383,830.93/74,552.13
  6. Step 6: Final answer
    x = 58,957.19

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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.