Home / 86,613.45-129,870.54-26,626.32

Finding the Fourth Proportional to 86,613.45, 129,870.54 and 26,626.32

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Solution

The fourth proportional to 86,613.45, 129,870.54 and 26,626.32 is: 39,924.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,613.45 : 129,870.54 = 26,626.32 : x
  2. Step 2: Convert to fraction form
    86,613.45/129,870.54 = 26,626.32/x
  3. Step 3: Cross multiply
    86,613.45x = 129,870.54 × 26,626.32
  4. Step 4: Simplify right side
    86,613.45x = 3,457,974,556.61
  5. Step 5: Solve for x
    x = 3,457,974,556.61/86,613.45
  6. Step 6: Final answer
    x = 39,924.22

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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.