Home / 86,298.76-129,465.79-36,378.86

Finding the Fourth Proportional to 86,298.76, 129,465.79 and 36,378.86

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Solution

The fourth proportional to 86,298.76, 129,465.79 and 36,378.86 is: 54,575.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,298.76 : 129,465.79 = 36,378.86 : x
  2. Step 2: Convert to fraction form
    86,298.76/129,465.79 = 36,378.86/x
  3. Step 3: Cross multiply
    86,298.76x = 129,465.79 × 36,378.86
  4. Step 4: Simplify right side
    86,298.76x = 4,709,818,081.92
  5. Step 5: Solve for x
    x = 4,709,818,081.92/86,298.76
  6. Step 6: Final answer
    x = 54,575.73

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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.