Home / 53,678.88-74,071.44-31,335.84

Finding the Fourth Proportional to 53,678.88, 74,071.44 and 31,335.84

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Solution

The fourth proportional to 53,678.88, 74,071.44 and 31,335.84 is: 43,240.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,678.88 : 74,071.44 = 31,335.84 : x
  2. Step 2: Convert to fraction form
    53,678.88/74,071.44 = 31,335.84/x
  3. Step 3: Cross multiply
    53,678.88x = 74,071.44 × 31,335.84
  4. Step 4: Simplify right side
    53,678.88x = 2,321,090,792.41
  5. Step 5: Solve for x
    x = 2,321,090,792.41/53,678.88
  6. Step 6: Final answer
    x = 43,240.30

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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.