Home / 84,731.53-116,929.16-47,005.78

Finding the Fourth Proportional to 84,731.53, 116,929.16 and 47,005.78

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Solution

The fourth proportional to 84,731.53, 116,929.16 and 47,005.78 is: 64,867.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,731.53 : 116,929.16 = 47,005.78 : x
  2. Step 2: Convert to fraction form
    84,731.53/116,929.16 = 47,005.78/x
  3. Step 3: Cross multiply
    84,731.53x = 116,929.16 × 47,005.78
  4. Step 4: Simplify right side
    84,731.53x = 5,496,346,135.52
  5. Step 5: Solve for x
    x = 5,496,346,135.52/84,731.53
  6. Step 6: Final answer
    x = 64,867.78

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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.