Home / 53,629.04-74,007.60-30,972.80

Finding the Fourth Proportional to 53,629.04, 74,007.60 and 30,972.80

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Solution

The fourth proportional to 53,629.04, 74,007.60 and 30,972.80 is: 42,742.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,629.04 : 74,007.60 = 30,972.80 : x
  2. Step 2: Convert to fraction form
    53,629.04/74,007.60 = 30,972.80/x
  3. Step 3: Cross multiply
    53,629.04x = 74,007.60 × 30,972.80
  4. Step 4: Simplify right side
    53,629.04x = 2,292,222,593.28
  5. Step 5: Solve for x
    x = 2,292,222,593.28/53,629.04
  6. Step 6: Final answer
    x = 42,742.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.