Home / 80,923.08-121,384.44-28,347.60

Finding the Fourth Proportional to 80,923.08, 121,384.44 and 28,347.60

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Solution

The fourth proportional to 80,923.08, 121,384.44 and 28,347.60 is: 42,521.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,923.08 : 121,384.44 = 28,347.60 : x
  2. Step 2: Convert to fraction form
    80,923.08/121,384.44 = 28,347.60/x
  3. Step 3: Cross multiply
    80,923.08x = 121,384.44 × 28,347.60
  4. Step 4: Simplify right side
    80,923.08x = 3,440,957,551.34
  5. Step 5: Solve for x
    x = 3,440,957,551.34/80,923.08
  6. Step 6: Final answer
    x = 42,521.34

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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.