Home / 86,349.59-129,536.18-30,176.67

Finding the Fourth Proportional to 86,349.59, 129,536.18 and 30,176.67

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Solution

The fourth proportional to 86,349.59, 129,536.18 and 30,176.67 is: 45,269.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,349.59 : 129,536.18 = 30,176.67 : x
  2. Step 2: Convert to fraction form
    86,349.59/129,536.18 = 30,176.67/x
  3. Step 3: Cross multiply
    86,349.59x = 129,536.18 × 30,176.67
  4. Step 4: Simplify right side
    86,349.59x = 3,908,970,613.21
  5. Step 5: Solve for x
    x = 3,908,970,613.21/86,349.59
  6. Step 6: Final answer
    x = 45,269.13

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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.