Home / 53,083.04-79,624.56-13,640.15

Finding the Fourth Proportional to 53,083.04, 79,624.56 and 13,640.15

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Solution

The fourth proportional to 53,083.04, 79,624.56 and 13,640.15 is: 20,460.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,083.04 : 79,624.56 = 13,640.15 : x
  2. Step 2: Convert to fraction form
    53,083.04/79,624.56 = 13,640.15/x
  3. Step 3: Cross multiply
    53,083.04x = 79,624.56 × 13,640.15
  4. Step 4: Simplify right side
    53,083.04x = 1,086,090,942.08
  5. Step 5: Solve for x
    x = 1,086,090,942.08/53,083.04
  6. Step 6: Final answer
    x = 20,460.23

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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.