Home / 76,110.24-105,029.99-42,120.14

Finding the Fourth Proportional to 76,110.24, 105,029.99 and 42,120.14

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Solution

The fourth proportional to 76,110.24, 105,029.99 and 42,120.14 is: 58,124.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,110.24 : 105,029.99 = 42,120.14 : x
  2. Step 2: Convert to fraction form
    76,110.24/105,029.99 = 42,120.14/x
  3. Step 3: Cross multiply
    76,110.24x = 105,029.99 × 42,120.14
  4. Step 4: Simplify right side
    76,110.24x = 4,423,877,934.97
  5. Step 5: Solve for x
    x = 4,423,877,934.97/76,110.24
  6. Step 6: Final answer
    x = 58,124.61

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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.