Home / 76,235.42-105,203.30-42,243.61

Finding the Fourth Proportional to 76,235.42, 105,203.30 and 42,243.61

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Solution

The fourth proportional to 76,235.42, 105,203.30 and 42,243.61 is: 58,295.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,235.42 : 105,203.30 = 42,243.61 : x
  2. Step 2: Convert to fraction form
    76,235.42/105,203.30 = 42,243.61/x
  3. Step 3: Cross multiply
    76,235.42x = 105,203.30 × 42,243.61
  4. Step 4: Simplify right side
    76,235.42x = 4,444,167,175.91
  5. Step 5: Solve for x
    x = 4,444,167,175.91/76,235.42
  6. Step 6: Final answer
    x = 58,295.31

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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.