Home / 99,947.85-137,927.71-54,625.83

Finding the Fourth Proportional to 99,947.85, 137,927.71 and 54,625.83

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Solution

The fourth proportional to 99,947.85, 137,927.71 and 54,625.83 is: 75,383.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,947.85 : 137,927.71 = 54,625.83 : x
  2. Step 2: Convert to fraction form
    99,947.85/137,927.71 = 54,625.83/x
  3. Step 3: Cross multiply
    99,947.85x = 137,927.71 × 54,625.83
  4. Step 4: Simplify right side
    99,947.85x = 7,534,415,638.75
  5. Step 5: Solve for x
    x = 7,534,415,638.75/99,947.85
  6. Step 6: Final answer
    x = 75,383.47

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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.