Home / 81,653.54-122,432.63-31,675.23

Finding the Fourth Proportional to 81,653.54, 122,432.63 and 31,675.23

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Solution

The fourth proportional to 81,653.54, 122,432.63 and 31,675.23 is: 47,494.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,653.54 : 122,432.63 = 31,675.23 : x
  2. Step 2: Convert to fraction form
    81,653.54/122,432.63 = 31,675.23/x
  3. Step 3: Cross multiply
    81,653.54x = 122,432.63 × 31,675.23
  4. Step 4: Simplify right side
    81,653.54x = 3,878,081,556.38
  5. Step 5: Solve for x
    x = 3,878,081,556.38/81,653.54
  6. Step 6: Final answer
    x = 47,494.35

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1.5x scale

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.