Home / 99,020.31-136,648.06-53,698.28

Finding the Fourth Proportional to 99,020.31, 136,648.06 and 53,698.28

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Solution

The fourth proportional to 99,020.31, 136,648.06 and 53,698.28 is: 74,103.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,020.31 : 136,648.06 = 53,698.28 : x
  2. Step 2: Convert to fraction form
    99,020.31/136,648.06 = 53,698.28/x
  3. Step 3: Cross multiply
    99,020.31x = 136,648.06 × 53,698.28
  4. Step 4: Simplify right side
    99,020.31x = 7,337,765,579.96
  5. Step 5: Solve for x
    x = 7,337,765,579.96/99,020.31
  6. Step 6: Final answer
    x = 74,103.64

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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.