Home / 53,391.18-80,081.30-13,943.16

Finding the Fourth Proportional to 53,391.18, 80,081.30 and 13,943.16

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Solution

The fourth proportional to 53,391.18, 80,081.30 and 13,943.16 is: 20,913.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,391.18 : 80,081.30 = 13,943.16 : x
  2. Step 2: Convert to fraction form
    53,391.18/80,081.30 = 13,943.16/x
  3. Step 3: Cross multiply
    53,391.18x = 80,081.30 × 13,943.16
  4. Step 4: Simplify right side
    53,391.18x = 1,116,586,309.19
  5. Step 5: Solve for x
    x = 1,116,586,309.19/53,391.18
  6. Step 6: Final answer
    x = 20,913.31

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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.