Home / 76,259.58-105,244.53-42,278.73

Finding the Fourth Proportional to 76,259.58, 105,244.53 and 42,278.73

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Solution

The fourth proportional to 76,259.58, 105,244.53 and 42,278.73 is: 58,348.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,259.58 : 105,244.53 = 42,278.73 : x
  2. Step 2: Convert to fraction form
    76,259.58/105,244.53 = 42,278.73/x
  3. Step 3: Cross multiply
    76,259.58x = 105,244.53 × 42,278.73
  4. Step 4: Simplify right side
    76,259.58x = 4,449,605,640.45
  5. Step 5: Solve for x
    x = 4,449,605,640.45/76,259.58
  6. Step 6: Final answer
    x = 58,348.15

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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.