Home / 50,459.42-75,724.32-20,877.50

Finding the Fourth Proportional to 50,459.42, 75,724.32 and 20,877.50

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Solution

The fourth proportional to 50,459.42, 75,724.32 and 20,877.50 is: 31,330.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,459.42 : 75,724.32 = 20,877.50 : x
  2. Step 2: Convert to fraction form
    50,459.42/75,724.32 = 20,877.50/x
  3. Step 3: Cross multiply
    50,459.42x = 75,724.32 × 20,877.50
  4. Step 4: Simplify right side
    50,459.42x = 1,580,934,490.80
  5. Step 5: Solve for x
    x = 1,580,934,490.80/50,459.42
  6. Step 6: Final answer
    x = 31,330.81

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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.