Home / 86,151.08-129,226.52-26,991.36

Finding the Fourth Proportional to 86,151.08, 129,226.52 and 26,991.36

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Solution

The fourth proportional to 86,151.08, 129,226.52 and 26,991.36 is: 40,487.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,151.08 : 129,226.52 = 26,991.36 : x
  2. Step 2: Convert to fraction form
    86,151.08/129,226.52 = 26,991.36/x
  3. Step 3: Cross multiply
    86,151.08x = 129,226.52 × 26,991.36
  4. Step 4: Simplify right side
    86,151.08x = 3,487,999,590.35
  5. Step 5: Solve for x
    x = 3,487,999,590.35/86,151.08
  6. Step 6: Final answer
    x = 40,487.01

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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.