Home / 86,962.05-130,245.03-51,829.11

Finding the Fourth Proportional to 86,962.05, 130,245.03 and 51,829.11

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Solution

The fourth proportional to 86,962.05, 130,245.03 and 51,829.11 is: 77,625.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,962.05 : 130,245.03 = 51,829.11 : x
  2. Step 2: Convert to fraction form
    86,962.05/130,245.03 = 51,829.11/x
  3. Step 3: Cross multiply
    86,962.05x = 130,245.03 × 51,829.11
  4. Step 4: Simplify right side
    86,962.05x = 6,750,483,986.82
  5. Step 5: Solve for x
    x = 6,750,483,986.82/86,962.05
  6. Step 6: Final answer
    x = 77,625.63

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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.