Home / 90,631.89-125,106.93-60,406.20

Finding the Fourth Proportional to 90,631.89, 125,106.93 and 60,406.20

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Solution

The fourth proportional to 90,631.89, 125,106.93 and 60,406.20 is: 83,383.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,631.89 : 125,106.93 = 60,406.20 : x
  2. Step 2: Convert to fraction form
    90,631.89/125,106.93 = 60,406.20/x
  3. Step 3: Cross multiply
    90,631.89x = 125,106.93 × 60,406.20
  4. Step 4: Simplify right side
    90,631.89x = 7,557,234,234.97
  5. Step 5: Solve for x
    x = 7,557,234,234.97/90,631.89
  6. Step 6: Final answer
    x = 83,383.83

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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.