Home / 77,579.50-116,366.92-21,423.04

Finding the Fourth Proportional to 77,579.50, 116,366.92 and 21,423.04

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Solution

The fourth proportional to 77,579.50, 116,366.92 and 21,423.04 is: 32,133.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,579.50 : 116,366.92 = 21,423.04 : x
  2. Step 2: Convert to fraction form
    77,579.50/116,366.92 = 21,423.04/x
  3. Step 3: Cross multiply
    77,579.50x = 116,366.92 × 21,423.04
  4. Step 4: Simplify right side
    77,579.50x = 2,492,933,181.84
  5. Step 5: Solve for x
    x = 2,492,933,181.84/77,579.50
  6. Step 6: Final answer
    x = 32,133.92

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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.