Home / 53,811.14-74,258.22-31,151.08

Finding the Fourth Proportional to 53,811.14, 74,258.22 and 31,151.08

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Solution

The fourth proportional to 53,811.14, 74,258.22 and 31,151.08 is: 42,987.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,811.14 : 74,258.22 = 31,151.08 : x
  2. Step 2: Convert to fraction form
    53,811.14/74,258.22 = 31,151.08/x
  3. Step 3: Cross multiply
    53,811.14x = 74,258.22 × 31,151.08
  4. Step 4: Simplify right side
    53,811.14x = 2,313,223,786.29
  5. Step 5: Solve for x
    x = 2,313,223,786.29/53,811.14
  6. Step 6: Final answer
    x = 42,987.83

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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.