Home / 85,463.10-127,945.50-49,815.36

Finding the Fourth Proportional to 85,463.10, 127,945.50 and 49,815.36

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Solution

The fourth proportional to 85,463.10, 127,945.50 and 49,815.36 is: 74,577.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,463.10 : 127,945.50 = 49,815.36 : x
  2. Step 2: Convert to fraction form
    85,463.10/127,945.50 = 49,815.36/x
  3. Step 3: Cross multiply
    85,463.10x = 127,945.50 × 49,815.36
  4. Step 4: Simplify right side
    85,463.10x = 6,373,651,142.88
  5. Step 5: Solve for x
    x = 6,373,651,142.88/85,463.10
  6. Step 6: Final answer
    x = 74,577.81

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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.