Home / 90,490.77-135,559.58-59,231.25

Finding the Fourth Proportional to 90,490.77, 135,559.58 and 59,231.25

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Solution

The fourth proportional to 90,490.77, 135,559.58 and 59,231.25 is: 88,731.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,490.77 : 135,559.58 = 59,231.25 : x
  2. Step 2: Convert to fraction form
    90,490.77/135,559.58 = 59,231.25/x
  3. Step 3: Cross multiply
    90,490.77x = 135,559.58 × 59,231.25
  4. Step 4: Simplify right side
    90,490.77x = 8,029,363,076.72
  5. Step 5: Solve for x
    x = 8,029,363,076.72/90,490.77
  6. Step 6: Final answer
    x = 88,731.29

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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.