Home / 54,982-75,875.18-31,108.16

Finding the Fourth Proportional to 54,982, 75,875.18 and 31,108.16

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Solution

The fourth proportional to 54,982, 75,875.18 and 31,108.16 is: 42,929.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,982 : 75,875.18 = 31,108.16 : x
  2. Step 2: Convert to fraction form
    54,982/75,875.18 = 31,108.16/x
  3. Step 3: Cross multiply
    54,982x = 75,875.18 × 31,108.16
  4. Step 4: Simplify right side
    54,982x = 2,360,337,239.47
  5. Step 5: Solve for x
    x = 2,360,337,239.47/54,982
  6. Step 6: Final answer
    x = 42,929.27

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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.