Home / 86,000.13-129,024.09-36,068.49

Finding the Fourth Proportional to 86,000.13, 129,024.09 and 36,068.49

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Solution

The fourth proportional to 86,000.13, 129,024.09 and 36,068.49 is: 54,112.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,000.13 : 129,024.09 = 36,068.49 : x
  2. Step 2: Convert to fraction form
    86,000.13/129,024.09 = 36,068.49/x
  3. Step 3: Cross multiply
    86,000.13x = 129,024.09 × 36,068.49
  4. Step 4: Simplify right side
    86,000.13x = 4,653,704,099.92
  5. Step 5: Solve for x
    x = 4,653,704,099.92/86,000.13
  6. Step 6: Final answer
    x = 54,112.76

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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.