Home / 85,246.86-127,907.16-45,757.87

Finding the Fourth Proportional to 85,246.86, 127,907.16 and 45,757.87

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Solution

The fourth proportional to 85,246.86, 127,907.16 and 45,757.87 is: 68,656.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,246.86 : 127,907.16 = 45,757.87 : x
  2. Step 2: Convert to fraction form
    85,246.86/127,907.16 = 45,757.87/x
  3. Step 3: Cross multiply
    85,246.86x = 127,907.16 × 45,757.87
  4. Step 4: Simplify right side
    85,246.86x = 5,852,759,813.55
  5. Step 5: Solve for x
    x = 5,852,759,813.55/85,246.86
  6. Step 6: Final answer
    x = 68,656.60

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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.