Home / 276,628.50-414,943.11-76,948.90

Finding the Fourth Proportional to 276,628.50, 414,943.11 and 76,948.90

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Solution

The fourth proportional to 276,628.50, 414,943.11 and 76,948.90 is: 115,423.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,628.50 : 414,943.11 = 76,948.90 : x
  2. Step 2: Convert to fraction form
    276,628.50/414,943.11 = 76,948.90/x
  3. Step 3: Cross multiply
    276,628.50x = 414,943.11 × 76,948.90
  4. Step 4: Simplify right side
    276,628.50x = 31,929,415,877.08
  5. Step 5: Solve for x
    x = 31,929,415,877.08/276,628.50
  6. Step 6: Final answer
    x = 115,423.45

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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.