Home / 114,539.91-171,768.69-39,639.72

Finding the Fourth Proportional to 114,539.91, 171,768.69 and 39,639.72

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Solution

The fourth proportional to 114,539.91, 171,768.69 and 39,639.72 is: 59,445.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,539.91 : 171,768.69 = 39,639.72 : x
  2. Step 2: Convert to fraction form
    114,539.91/171,768.69 = 39,639.72/x
  3. Step 3: Cross multiply
    114,539.91x = 171,768.69 × 39,639.72
  4. Step 4: Simplify right side
    114,539.91x = 6,808,862,776.37
  5. Step 5: Solve for x
    x = 6,808,862,776.37/114,539.91
  6. Step 6: Final answer
    x = 59,445.33

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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.