Home / 89,923.89-124,018.77-54,107.20

Finding the Fourth Proportional to 89,923.89, 124,018.77 and 54,107.20

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Solution

The fourth proportional to 89,923.89, 124,018.77 and 54,107.20 is: 74,622.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,923.89 : 124,018.77 = 54,107.20 : x
  2. Step 2: Convert to fraction form
    89,923.89/124,018.77 = 54,107.20/x
  3. Step 3: Cross multiply
    89,923.89x = 124,018.77 × 54,107.20
  4. Step 4: Simplify right side
    89,923.89x = 6,710,308,392.14
  5. Step 5: Solve for x
    x = 6,710,308,392.14/89,923.89
  6. Step 6: Final answer
    x = 74,622.09

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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.