Home / 48,237.96-72,368.40-20,142.36

Finding the Fourth Proportional to 48,237.96, 72,368.40 and 20,142.36

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Solution

The fourth proportional to 48,237.96, 72,368.40 and 20,142.36 is: 30,218.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,237.96 : 72,368.40 = 20,142.36 : x
  2. Step 2: Convert to fraction form
    48,237.96/72,368.40 = 20,142.36/x
  3. Step 3: Cross multiply
    48,237.96x = 72,368.40 × 20,142.36
  4. Step 4: Simplify right side
    48,237.96x = 1,457,670,365.42
  5. Step 5: Solve for x
    x = 1,457,670,365.42/48,237.96
  6. Step 6: Final answer
    x = 30,218.33

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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.