Home / 53,920.34-74,410.37-31,272.75

Finding the Fourth Proportional to 53,920.34, 74,410.37 and 31,272.75

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Solution

The fourth proportional to 53,920.34, 74,410.37 and 31,272.75 is: 43,156.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,920.34 : 74,410.37 = 31,272.75 : x
  2. Step 2: Convert to fraction form
    53,920.34/74,410.37 = 31,272.75/x
  3. Step 3: Cross multiply
    53,920.34x = 74,410.37 × 31,272.75
  4. Step 4: Simplify right side
    53,920.34x = 2,327,016,742.05
  5. Step 5: Solve for x
    x = 2,327,016,742.05/53,920.34
  6. Step 6: Final answer
    x = 43,156.57

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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.