Home / 86,151.63-129,233.61-22,971.42

Finding the Fourth Proportional to 86,151.63, 129,233.61 and 22,971.42

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Solution

The fourth proportional to 86,151.63, 129,233.61 and 22,971.42 is: 34,458.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,151.63 : 129,233.61 = 22,971.42 : x
  2. Step 2: Convert to fraction form
    86,151.63/129,233.61 = 22,971.42/x
  3. Step 3: Cross multiply
    86,151.63x = 129,233.61 × 22,971.42
  4. Step 4: Simplify right side
    86,151.63x = 2,968,679,476.88
  5. Step 5: Solve for x
    x = 2,968,679,476.88/86,151.63
  6. Step 6: Final answer
    x = 34,458.77

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1.5x scale

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.