Home / 86,888.32-130,330.20-27,727.60

Finding the Fourth Proportional to 86,888.32, 130,330.20 and 27,727.60

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Solution

The fourth proportional to 86,888.32, 130,330.20 and 27,727.60 is: 41,590.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,888.32 : 130,330.20 = 27,727.60 : x
  2. Step 2: Convert to fraction form
    86,888.32/130,330.20 = 27,727.60/x
  3. Step 3: Cross multiply
    86,888.32x = 130,330.20 × 27,727.60
  4. Step 4: Simplify right side
    86,888.32x = 3,613,743,653.52
  5. Step 5: Solve for x
    x = 3,613,743,653.52/86,888.32
  6. Step 6: Final answer
    x = 41,590.67

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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.