Home / 86,837.24-119,835.78-49,118.78

Finding the Fourth Proportional to 86,837.24, 119,835.78 and 49,118.78

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Solution

The fourth proportional to 86,837.24, 119,835.78 and 49,118.78 is: 67,784.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,837.24 : 119,835.78 = 49,118.78 : x
  2. Step 2: Convert to fraction form
    86,837.24/119,835.78 = 49,118.78/x
  3. Step 3: Cross multiply
    86,837.24x = 119,835.78 × 49,118.78
  4. Step 4: Simplify right side
    86,837.24x = 5,886,187,313.95
  5. Step 5: Solve for x
    x = 5,886,187,313.95/86,837.24
  6. Step 6: Final answer
    x = 67,784.14

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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.