Home / 86,108.03-129,164.48-23,778.53

Finding the Fourth Proportional to 86,108.03, 129,164.48 and 23,778.53

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Solution

The fourth proportional to 86,108.03, 129,164.48 and 23,778.53 is: 35,668.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,108.03 : 129,164.48 = 23,778.53 : x
  2. Step 2: Convert to fraction form
    86,108.03/129,164.48 = 23,778.53/x
  3. Step 3: Cross multiply
    86,108.03x = 129,164.48 × 23,778.53
  4. Step 4: Simplify right side
    86,108.03x = 3,071,341,634.71
  5. Step 5: Solve for x
    x = 3,071,341,634.71/86,108.03
  6. Step 6: Final answer
    x = 35,668.47

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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.