Home / 53,970.13-80,954.63-18,431.04

Finding the Fourth Proportional to 53,970.13, 80,954.63 and 18,431.04

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Solution

The fourth proportional to 53,970.13, 80,954.63 and 18,431.04 is: 27,646.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,970.13 : 80,954.63 = 18,431.04 : x
  2. Step 2: Convert to fraction form
    53,970.13/80,954.63 = 18,431.04/x
  3. Step 3: Cross multiply
    53,970.13x = 80,954.63 × 18,431.04
  4. Step 4: Simplify right side
    53,970.13x = 1,492,078,304.26
  5. Step 5: Solve for x
    x = 1,492,078,304.26/53,970.13
  6. Step 6: Final answer
    x = 27,646.37

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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.