Home / 53,727.14-74,139.10-31,067.60

Finding the Fourth Proportional to 53,727.14, 74,139.10 and 31,067.60

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Solution

The fourth proportional to 53,727.14, 74,139.10 and 31,067.60 is: 42,870.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,727.14 : 74,139.10 = 31,067.60 : x
  2. Step 2: Convert to fraction form
    53,727.14/74,139.10 = 31,067.60/x
  3. Step 3: Cross multiply
    53,727.14x = 74,139.10 × 31,067.60
  4. Step 4: Simplify right side
    53,727.14x = 2,303,323,903.16
  5. Step 5: Solve for x
    x = 2,303,323,903.16/53,727.14
  6. Step 6: Final answer
    x = 42,870.77

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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.