Home / 76,102.41-105,018.62-42,110.31

Finding the Fourth Proportional to 76,102.41, 105,018.62 and 42,110.31

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Solution

The fourth proportional to 76,102.41, 105,018.62 and 42,110.31 is: 58,110.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,102.41 : 105,018.62 = 42,110.31 : x
  2. Step 2: Convert to fraction form
    76,102.41/105,018.62 = 42,110.31/x
  3. Step 3: Cross multiply
    76,102.41x = 105,018.62 × 42,110.31
  4. Step 4: Simplify right side
    76,102.41x = 4,422,366,433.42
  5. Step 5: Solve for x
    x = 4,422,366,433.42/76,102.41
  6. Step 6: Final answer
    x = 58,110.73

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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.