Home / 86,921.10-119,953.76-48,680.55

Finding the Fourth Proportional to 86,921.10, 119,953.76 and 48,680.55

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Solution

The fourth proportional to 86,921.10, 119,953.76 and 48,680.55 is: 67,180.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,921.10 : 119,953.76 = 48,680.55 : x
  2. Step 2: Convert to fraction form
    86,921.10/119,953.76 = 48,680.55/x
  3. Step 3: Cross multiply
    86,921.10x = 119,953.76 × 48,680.55
  4. Step 4: Simplify right side
    86,921.10x = 5,839,415,011.37
  5. Step 5: Solve for x
    x = 5,839,415,011.37/86,921.10
  6. Step 6: Final answer
    x = 67,180.64

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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.