Home / 90,835.72-125,342.10-50,538.76

Finding the Fourth Proportional to 90,835.72, 125,342.10 and 50,538.76

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Solution

The fourth proportional to 90,835.72, 125,342.10 and 50,538.76 is: 69,737.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,835.72 : 125,342.10 = 50,538.76 : x
  2. Step 2: Convert to fraction form
    90,835.72/125,342.10 = 50,538.76/x
  3. Step 3: Cross multiply
    90,835.72x = 125,342.10 × 50,538.76
  4. Step 4: Simplify right side
    90,835.72x = 6,334,634,309.80
  5. Step 5: Solve for x
    x = 6,334,634,309.80/90,835.72
  6. Step 6: Final answer
    x = 69,737.26

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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.