Home / 76,311.39-105,320.48-42,327.44

Finding the Fourth Proportional to 76,311.39, 105,320.48 and 42,327.44

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Solution

The fourth proportional to 76,311.39, 105,320.48 and 42,327.44 is: 58,417.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,311.39 : 105,320.48 = 42,327.44 : x
  2. Step 2: Convert to fraction form
    76,311.39/105,320.48 = 42,327.44/x
  3. Step 3: Cross multiply
    76,311.39x = 105,320.48 × 42,327.44
  4. Step 4: Simplify right side
    76,311.39x = 4,457,945,559.73
  5. Step 5: Solve for x
    x = 4,457,945,559.73/76,311.39
  6. Step 6: Final answer
    x = 58,417.83

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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.