Home / 53,661.13-74,055.80-31,001.09

Finding the Fourth Proportional to 53,661.13, 74,055.80 and 31,001.09

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Solution

The fourth proportional to 53,661.13, 74,055.80 and 31,001.09 is: 42,783.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,661.13 : 74,055.80 = 31,001.09 : x
  2. Step 2: Convert to fraction form
    53,661.13/74,055.80 = 31,001.09/x
  3. Step 3: Cross multiply
    53,661.13x = 74,055.80 × 31,001.09
  4. Step 4: Simplify right side
    53,661.13x = 2,295,810,228.05
  5. Step 5: Solve for x
    x = 2,295,810,228.05/53,661.13
  6. Step 6: Final answer
    x = 42,783.49

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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.