Home / 86,840.79-119,853.18-55,012.65

Finding the Fourth Proportional to 86,840.79, 119,853.18 and 55,012.65

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Solution

The fourth proportional to 86,840.79, 119,853.18 and 55,012.65 is: 75,925.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,840.79 : 119,853.18 = 55,012.65 : x
  2. Step 2: Convert to fraction form
    86,840.79/119,853.18 = 55,012.65/x
  3. Step 3: Cross multiply
    86,840.79x = 119,853.18 × 55,012.65
  4. Step 4: Simplify right side
    86,840.79x = 6,593,441,042.73
  5. Step 5: Solve for x
    x = 6,593,441,042.73/86,840.79
  6. Step 6: Final answer
    x = 75,925.62

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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.