Home / 90,589.66-125,025.26-54,779.93

Finding the Fourth Proportional to 90,589.66, 125,025.26 and 54,779.93

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Solution

The fourth proportional to 90,589.66, 125,025.26 and 54,779.93 is: 75,603.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,589.66 : 125,025.26 = 54,779.93 : x
  2. Step 2: Convert to fraction form
    90,589.66/125,025.26 = 54,779.93/x
  3. Step 3: Cross multiply
    90,589.66x = 125,025.26 × 54,779.93
  4. Step 4: Simplify right side
    90,589.66x = 6,848,874,991.03
  5. Step 5: Solve for x
    x = 6,848,874,991.03/90,589.66
  6. Step 6: Final answer
    x = 75,603.28

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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.