Home / 52,438.89-72,365.29-28,565.56

Finding the Fourth Proportional to 52,438.89, 72,365.29 and 28,565.56

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Solution

The fourth proportional to 52,438.89, 72,365.29 and 28,565.56 is: 39,420.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,438.89 : 72,365.29 = 28,565.56 : x
  2. Step 2: Convert to fraction form
    52,438.89/72,365.29 = 28,565.56/x
  3. Step 3: Cross multiply
    52,438.89x = 72,365.29 × 28,565.56
  4. Step 4: Simplify right side
    52,438.89x = 2,067,155,033.41
  5. Step 5: Solve for x
    x = 2,067,155,033.41/52,438.89
  6. Step 6: Final answer
    x = 39,420.27

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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.