Home / 76,201.36-105,157.74-42,209.83

Finding the Fourth Proportional to 76,201.36, 105,157.74 and 42,209.83

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Solution

The fourth proportional to 76,201.36, 105,157.74 and 42,209.83 is: 58,249.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,201.36 : 105,157.74 = 42,209.83 : x
  2. Step 2: Convert to fraction form
    76,201.36/105,157.74 = 42,209.83/x
  3. Step 3: Cross multiply
    76,201.36x = 105,157.74 × 42,209.83
  4. Step 4: Simplify right side
    76,201.36x = 4,438,690,328.58
  5. Step 5: Solve for x
    x = 4,438,690,328.58/76,201.36
  6. Step 6: Final answer
    x = 58,249.49

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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.