Home / 86,285.34-119,049.76-51,820.87

Finding the Fourth Proportional to 86,285.34, 119,049.76 and 51,820.87

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Solution

The fourth proportional to 86,285.34, 119,049.76 and 51,820.87 is: 71,498.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,285.34 : 119,049.76 = 51,820.87 : x
  2. Step 2: Convert to fraction form
    86,285.34/119,049.76 = 51,820.87/x
  3. Step 3: Cross multiply
    86,285.34x = 119,049.76 × 51,820.87
  4. Step 4: Simplify right side
    86,285.34x = 6,169,262,136.49
  5. Step 5: Solve for x
    x = 6,169,262,136.49/86,285.34
  6. Step 6: Final answer
    x = 71,498.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.