Home / 76,240.15-105,212.03-42,249.21

Finding the Fourth Proportional to 76,240.15, 105,212.03 and 42,249.21

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Solution

The fourth proportional to 76,240.15, 105,212.03 and 42,249.21 is: 58,304.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,240.15 : 105,212.03 = 42,249.21 : x
  2. Step 2: Convert to fraction form
    76,240.15/105,212.03 = 42,249.21/x
  3. Step 3: Cross multiply
    76,240.15x = 105,212.03 × 42,249.21
  4. Step 4: Simplify right side
    76,240.15x = 4,445,125,150.00
  5. Step 5: Solve for x
    x = 4,445,125,150.00/76,240.15
  6. Step 6: Final answer
    x = 58,304.26

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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.