Home / 86,031.42-118,721.61-48,305.67

Finding the Fourth Proportional to 86,031.42, 118,721.61 and 48,305.67

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Solution

The fourth proportional to 86,031.42, 118,721.61 and 48,305.67 is: 66,660.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,031.42 : 118,721.61 = 48,305.67 : x
  2. Step 2: Convert to fraction form
    86,031.42/118,721.61 = 48,305.67/x
  3. Step 3: Cross multiply
    86,031.42x = 118,721.61 × 48,305.67
  4. Step 4: Simplify right side
    86,031.42x = 5,734,926,914.53
  5. Step 5: Solve for x
    x = 5,734,926,914.53/86,031.42
  6. Step 6: Final answer
    x = 66,660.84

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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.