Home / 57,990.12-87,005.91-35,777.64

Finding the Fourth Proportional to 57,990.12, 87,005.91 and 35,777.64

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Solution

The fourth proportional to 57,990.12, 87,005.91 and 35,777.64 is: 53,679.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,990.12 : 87,005.91 = 35,777.64 : x
  2. Step 2: Convert to fraction form
    57,990.12/87,005.91 = 35,777.64/x
  3. Step 3: Cross multiply
    57,990.12x = 87,005.91 × 35,777.64
  4. Step 4: Simplify right side
    57,990.12x = 3,112,866,125.85
  5. Step 5: Solve for x
    x = 3,112,866,125.85/57,990.12
  6. Step 6: Final answer
    x = 53,679.25

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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.