Home / 57,359.21-79,133.58-42,287.69

Finding the Fourth Proportional to 57,359.21, 79,133.58 and 42,287.69

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Solution

The fourth proportional to 57,359.21, 79,133.58 and 42,287.69 is: 58,340.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,359.21 : 79,133.58 = 42,287.69 : x
  2. Step 2: Convert to fraction form
    57,359.21/79,133.58 = 42,287.69/x
  3. Step 3: Cross multiply
    57,359.21x = 79,133.58 × 42,287.69
  4. Step 4: Simplify right side
    57,359.21x = 3,346,376,497.46
  5. Step 5: Solve for x
    x = 3,346,376,497.46/57,359.21
  6. Step 6: Final answer
    x = 58,340.71

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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.