Home / 86,368.54-129,526.65-30,198.18

Finding the Fourth Proportional to 86,368.54, 129,526.65 and 30,198.18

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Solution

The fourth proportional to 86,368.54, 129,526.65 and 30,198.18 is: 45,288.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,368.54 : 129,526.65 = 30,198.18 : x
  2. Step 2: Convert to fraction form
    86,368.54/129,526.65 = 30,198.18/x
  3. Step 3: Cross multiply
    86,368.54x = 129,526.65 × 30,198.18
  4. Step 4: Simplify right side
    86,368.54x = 3,911,468,519.36
  5. Step 5: Solve for x
    x = 3,911,468,519.36/86,368.54
  6. Step 6: Final answer
    x = 45,288.12

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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.