Home / 86,288.01-129,609.14-56,747.85

Finding the Fourth Proportional to 86,288.01, 129,609.14 and 56,747.85

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Solution

The fourth proportional to 86,288.01, 129,609.14 and 56,747.85 is: 85,238.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,288.01 : 129,609.14 = 56,747.85 : x
  2. Step 2: Convert to fraction form
    86,288.01/129,609.14 = 56,747.85/x
  3. Step 3: Cross multiply
    86,288.01x = 129,609.14 × 56,747.85
  4. Step 4: Simplify right side
    86,288.01x = 7,355,039,751.61
  5. Step 5: Solve for x
    x = 7,355,039,751.61/86,288.01
  6. Step 6: Final answer
    x = 85,238.26

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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.