Home / 86,031.93-129,065.81-43,361.34

Finding the Fourth Proportional to 86,031.93, 129,065.81 and 43,361.34

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Solution

The fourth proportional to 86,031.93, 129,065.81 and 43,361.34 is: 65,051.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,031.93 : 129,065.81 = 43,361.34 : x
  2. Step 2: Convert to fraction form
    86,031.93/129,065.81 = 43,361.34/x
  3. Step 3: Cross multiply
    86,031.93x = 129,065.81 × 43,361.34
  4. Step 4: Simplify right side
    86,031.93x = 5,596,466,469.79
  5. Step 5: Solve for x
    x = 5,596,466,469.79/86,031.93
  6. Step 6: Final answer
    x = 65,051.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.