Home / 86,282.82-129,483.34-30,122.93

Finding the Fourth Proportional to 86,282.82, 129,483.34 and 30,122.93

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Solution

The fourth proportional to 86,282.82, 129,483.34 and 30,122.93 is: 45,205.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,282.82 : 129,483.34 = 30,122.93 : x
  2. Step 2: Convert to fraction form
    86,282.82/129,483.34 = 30,122.93/x
  3. Step 3: Cross multiply
    86,282.82x = 129,483.34 × 30,122.93
  4. Step 4: Simplify right side
    86,282.82x = 3,900,417,835.39
  5. Step 5: Solve for x
    x = 3,900,417,835.39/86,282.82
  6. Step 6: Final answer
    x = 45,205.03

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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.