Home / 84,739.03-116,940-47,013.28

Finding the Fourth Proportional to 84,739.03, 116,940 and 47,013.28

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Solution

The fourth proportional to 84,739.03, 116,940 and 47,013.28 is: 64,878.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,739.03 : 116,940 = 47,013.28 : x
  2. Step 2: Convert to fraction form
    84,739.03/116,940 = 47,013.28/x
  3. Step 3: Cross multiply
    84,739.03x = 116,940 × 47,013.28
  4. Step 4: Simplify right side
    84,739.03x = 5,497,732,963.20
  5. Step 5: Solve for x
    x = 5,497,732,963.20/84,739.03
  6. Step 6: Final answer
    x = 64,878.40

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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.