Home / 90,704.48-125,173.67-49,870.32

Finding the Fourth Proportional to 90,704.48, 125,173.67 and 49,870.32

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Solution

The fourth proportional to 90,704.48, 125,173.67 and 49,870.32 is: 68,821.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,704.48 : 125,173.67 = 49,870.32 : x
  2. Step 2: Convert to fraction form
    90,704.48/125,173.67 = 49,870.32/x
  3. Step 3: Cross multiply
    90,704.48x = 125,173.67 × 49,870.32
  4. Step 4: Simplify right side
    90,704.48x = 6,242,450,259.72
  5. Step 5: Solve for x
    x = 6,242,450,259.72/90,704.48
  6. Step 6: Final answer
    x = 68,821.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.