Home / 57,724.60-86,603.64-28,159.60

Finding the Fourth Proportional to 57,724.60, 86,603.64 and 28,159.60

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Solution

The fourth proportional to 57,724.60, 86,603.64 and 28,159.60 is: 42,247.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,724.60 : 86,603.64 = 28,159.60 : x
  2. Step 2: Convert to fraction form
    57,724.60/86,603.64 = 28,159.60/x
  3. Step 3: Cross multiply
    57,724.60x = 86,603.64 × 28,159.60
  4. Step 4: Simplify right side
    57,724.60x = 2,438,723,860.94
  5. Step 5: Solve for x
    x = 2,438,723,860.94/57,724.60
  6. Step 6: Final answer
    x = 42,247.57

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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.