Home / 76,614.08-105,737.52-43,086.56

Finding the Fourth Proportional to 76,614.08, 105,737.52 and 43,086.56

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Solution

The fourth proportional to 76,614.08, 105,737.52 and 43,086.56 is: 59,465.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,614.08 : 105,737.52 = 43,086.56 : x
  2. Step 2: Convert to fraction form
    76,614.08/105,737.52 = 43,086.56/x
  3. Step 3: Cross multiply
    76,614.08x = 105,737.52 × 43,086.56
  4. Step 4: Simplify right side
    76,614.08x = 4,555,865,999.73
  5. Step 5: Solve for x
    x = 4,555,865,999.73/76,614.08
  6. Step 6: Final answer
    x = 59,465.13

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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.