Home / 76,600.32-105,706.92-42,607.64

Finding the Fourth Proportional to 76,600.32, 105,706.92 and 42,607.64

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Solution

The fourth proportional to 76,600.32, 105,706.92 and 42,607.64 is: 58,797.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,600.32 : 105,706.92 = 42,607.64 : x
  2. Step 2: Convert to fraction form
    76,600.32/105,706.92 = 42,607.64/x
  3. Step 3: Cross multiply
    76,600.32x = 105,706.92 × 42,607.64
  4. Step 4: Simplify right side
    76,600.32x = 4,503,922,392.87
  5. Step 5: Solve for x
    x = 4,503,922,392.87/76,600.32
  6. Step 6: Final answer
    x = 58,797.70

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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.