Home / 86,143.06-129,217.02-23,813.56

Finding the Fourth Proportional to 86,143.06, 129,217.02 and 23,813.56

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Solution

The fourth proportional to 86,143.06, 129,217.02 and 23,813.56 is: 35,721.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,143.06 : 129,217.02 = 23,813.56 : x
  2. Step 2: Convert to fraction form
    86,143.06/129,217.02 = 23,813.56/x
  3. Step 3: Cross multiply
    86,143.06x = 129,217.02 × 23,813.56
  4. Step 4: Simplify right side
    86,143.06x = 3,077,116,493.64
  5. Step 5: Solve for x
    x = 3,077,116,493.64/86,143.06
  6. Step 6: Final answer
    x = 35,721.00

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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.