Home / 82,138.86-113,351.58-46,328.78

Finding the Fourth Proportional to 82,138.86, 113,351.58 and 46,328.78

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Solution

The fourth proportional to 82,138.86, 113,351.58 and 46,328.78 is: 63,933.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,138.86 : 113,351.58 = 46,328.78 : x
  2. Step 2: Convert to fraction form
    82,138.86/113,351.58 = 46,328.78/x
  3. Step 3: Cross multiply
    82,138.86x = 113,351.58 × 46,328.78
  4. Step 4: Simplify right side
    82,138.86x = 5,251,440,412.47
  5. Step 5: Solve for x
    x = 5,251,440,412.47/82,138.86
  6. Step 6: Final answer
    x = 63,933.69

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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.