Home / 53,709.80-80,488.31-39,558.54

Finding the Fourth Proportional to 53,709.80, 80,488.31 and 39,558.54

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Solution

The fourth proportional to 53,709.80, 80,488.31 and 39,558.54 is: 59,281.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,709.80 : 80,488.31 = 39,558.54 : x
  2. Step 2: Convert to fraction form
    53,709.80/80,488.31 = 39,558.54/x
  3. Step 3: Cross multiply
    53,709.80x = 80,488.31 × 39,558.54
  4. Step 4: Simplify right side
    53,709.80x = 3,184,000,030.67
  5. Step 5: Solve for x
    x = 3,184,000,030.67/53,709.80
  6. Step 6: Final answer
    x = 59,281.55

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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.