Home / 99,043.07-136,671.32-54,331.07

Finding the Fourth Proportional to 99,043.07, 136,671.32 and 54,331.07

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Solution

The fourth proportional to 99,043.07, 136,671.32 and 54,331.07 is: 74,972.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,043.07 : 136,671.32 = 54,331.07 : x
  2. Step 2: Convert to fraction form
    99,043.07/136,671.32 = 54,331.07/x
  3. Step 3: Cross multiply
    99,043.07x = 136,671.32 × 54,331.07
  4. Step 4: Simplify right side
    99,043.07x = 7,425,498,782.26
  5. Step 5: Solve for x
    x = 7,425,498,782.26/99,043.07
  6. Step 6: Final answer
    x = 74,972.42

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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.