Home / 76,634.58-105,756.66-43,100.58

Finding the Fourth Proportional to 76,634.58, 105,756.66 and 43,100.58

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Solution

The fourth proportional to 76,634.58, 105,756.66 and 43,100.58 is: 59,479.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,634.58 : 105,756.66 = 43,100.58 : x
  2. Step 2: Convert to fraction form
    76,634.58/105,756.66 = 43,100.58/x
  3. Step 3: Cross multiply
    76,634.58x = 105,756.66 × 43,100.58
  4. Step 4: Simplify right side
    76,634.58x = 4,558,173,384.86
  5. Step 5: Solve for x
    x = 4,558,173,384.86/76,634.58
  6. Step 6: Final answer
    x = 59,479.33

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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.