Home / 86,035.24-129,103.02-36,111.48

Finding the Fourth Proportional to 86,035.24, 129,103.02 and 36,111.48

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Solution

The fourth proportional to 86,035.24, 129,103.02 and 36,111.48 is: 54,188.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,035.24 : 129,103.02 = 36,111.48 : x
  2. Step 2: Convert to fraction form
    86,035.24/129,103.02 = 36,111.48/x
  3. Step 3: Cross multiply
    86,035.24x = 129,103.02 × 36,111.48
  4. Step 4: Simplify right side
    86,035.24x = 4,662,101,124.67
  5. Step 5: Solve for x
    x = 4,662,101,124.67/86,035.24
  6. Step 6: Final answer
    x = 54,188.27

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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.