Home / 99,018.25-136,653.83-54,314.89

Finding the Fourth Proportional to 99,018.25, 136,653.83 and 54,314.89

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Solution

The fourth proportional to 99,018.25, 136,653.83 and 54,314.89 is: 74,959.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,018.25 : 136,653.83 = 54,314.89 : x
  2. Step 2: Convert to fraction form
    99,018.25/136,653.83 = 54,314.89/x
  3. Step 3: Cross multiply
    99,018.25x = 136,653.83 × 54,314.89
  4. Step 4: Simplify right side
    99,018.25x = 7,422,337,744.53
  5. Step 5: Solve for x
    x = 7,422,337,744.53/99,018.25
  6. Step 6: Final answer
    x = 74,959.29

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1.5x scale

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.