Home / 76,249.89-105,232.20-42,265.74

Finding the Fourth Proportional to 76,249.89, 105,232.20 and 42,265.74

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Solution

The fourth proportional to 76,249.89, 105,232.20 and 42,265.74 is: 58,330.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,249.89 : 105,232.20 = 42,265.74 : x
  2. Step 2: Convert to fraction form
    76,249.89/105,232.20 = 42,265.74/x
  3. Step 3: Cross multiply
    76,249.89x = 105,232.20 × 42,265.74
  4. Step 4: Simplify right side
    76,249.89x = 4,447,716,804.83
  5. Step 5: Solve for x
    x = 4,447,716,804.83/76,249.89
  6. Step 6: Final answer
    x = 58,330.80

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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.