Home / 86,836.24-119,834.40-49,117.78

Finding the Fourth Proportional to 86,836.24, 119,834.40 and 49,117.78

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Solution

The fourth proportional to 86,836.24, 119,834.40 and 49,117.78 is: 67,782.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,836.24 : 119,834.40 = 49,117.78 : x
  2. Step 2: Convert to fraction form
    86,836.24/119,834.40 = 49,117.78/x
  3. Step 3: Cross multiply
    86,836.24x = 119,834.40 × 49,117.78
  4. Step 4: Simplify right side
    86,836.24x = 5,885,999,695.63
  5. Step 5: Solve for x
    x = 5,885,999,695.63/86,836.24
  6. Step 6: Final answer
    x = 67,782.76

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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.