Home / 55,328.15-82,963.40-19,775.76

Finding the Fourth Proportional to 55,328.15, 82,963.40 and 19,775.76

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Solution

The fourth proportional to 55,328.15, 82,963.40 and 19,775.76 is: 29,653.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,328.15 : 82,963.40 = 19,775.76 : x
  2. Step 2: Convert to fraction form
    55,328.15/82,963.40 = 19,775.76/x
  3. Step 3: Cross multiply
    55,328.15x = 82,963.40 × 19,775.76
  4. Step 4: Simplify right side
    55,328.15x = 1,640,664,188.31
  5. Step 5: Solve for x
    x = 1,640,664,188.31/55,328.15
  6. Step 6: Final answer
    x = 29,653.34

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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.