Home / 86,612.40-119,521.68-54,364.20

Finding the Fourth Proportional to 86,612.40, 119,521.68 and 54,364.20

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Solution

The fourth proportional to 86,612.40, 119,521.68 and 54,364.20 is: 75,020.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,612.40 : 119,521.68 = 54,364.20 : x
  2. Step 2: Convert to fraction form
    86,612.40/119,521.68 = 54,364.20/x
  3. Step 3: Cross multiply
    86,612.40x = 119,521.68 × 54,364.20
  4. Step 4: Simplify right side
    86,612.40x = 6,497,700,515.86
  5. Step 5: Solve for x
    x = 6,497,700,515.86/86,612.40
  6. Step 6: Final answer
    x = 75,020.44

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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.