Home / 76,724.62-105,879.65-42,733.51

Finding the Fourth Proportional to 76,724.62, 105,879.65 and 42,733.51

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Solution

The fourth proportional to 76,724.62, 105,879.65 and 42,733.51 is: 58,972.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,724.62 : 105,879.65 = 42,733.51 : x
  2. Step 2: Convert to fraction form
    76,724.62/105,879.65 = 42,733.51/x
  3. Step 3: Cross multiply
    76,724.62x = 105,879.65 × 42,733.51
  4. Step 4: Simplify right side
    76,724.62x = 4,524,608,603.70
  5. Step 5: Solve for x
    x = 4,524,608,603.70/76,724.62
  6. Step 6: Final answer
    x = 58,972.06

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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.