Home / 86,682.86-129,987.38-34,055.44

Finding the Fourth Proportional to 86,682.86, 129,987.38 and 34,055.44

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Solution

The fourth proportional to 86,682.86, 129,987.38 and 34,055.44 is: 51,068.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,682.86 : 129,987.38 = 34,055.44 : x
  2. Step 2: Convert to fraction form
    86,682.86/129,987.38 = 34,055.44/x
  3. Step 3: Cross multiply
    86,682.86x = 129,987.38 × 34,055.44
  4. Step 4: Simplify right side
    86,682.86x = 4,426,777,180.52
  5. Step 5: Solve for x
    x = 4,426,777,180.52/86,682.86
  6. Step 6: Final answer
    x = 51,068.66

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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.