Home / 50,558.01-75,840.35-20,978.22

Finding the Fourth Proportional to 50,558.01, 75,840.35 and 20,978.22

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Solution

The fourth proportional to 50,558.01, 75,840.35 and 20,978.22 is: 31,468.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,558.01 : 75,840.35 = 20,978.22 : x
  2. Step 2: Convert to fraction form
    50,558.01/75,840.35 = 20,978.22/x
  3. Step 3: Cross multiply
    50,558.01x = 75,840.35 × 20,978.22
  4. Step 4: Simplify right side
    50,558.01x = 1,590,995,442.29
  5. Step 5: Solve for x
    x = 1,590,995,442.29/50,558.01
  6. Step 6: Final answer
    x = 31,468.71

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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.