Home / 51,706.32-77,406.39-31,921.26

Finding the Fourth Proportional to 51,706.32, 77,406.39 and 31,921.26

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Solution

The fourth proportional to 51,706.32, 77,406.39 and 31,921.26 is: 47,787.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,706.32 : 77,406.39 = 31,921.26 : x
  2. Step 2: Convert to fraction form
    51,706.32/77,406.39 = 31,921.26/x
  3. Step 3: Cross multiply
    51,706.32x = 77,406.39 × 31,921.26
  4. Step 4: Simplify right side
    51,706.32x = 2,470,909,500.85
  5. Step 5: Solve for x
    x = 2,470,909,500.85/51,706.32
  6. Step 6: Final answer
    x = 47,787.38

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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.