Home / 53,679.51-74,079.86-31,017.75

Finding the Fourth Proportional to 53,679.51, 74,079.86 and 31,017.75

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Solution

The fourth proportional to 53,679.51, 74,079.86 and 31,017.75 is: 42,805.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,679.51 : 74,079.86 = 31,017.75 : x
  2. Step 2: Convert to fraction form
    53,679.51/74,079.86 = 31,017.75/x
  3. Step 3: Cross multiply
    53,679.51x = 74,079.86 × 31,017.75
  4. Step 4: Simplify right side
    53,679.51x = 2,297,790,422.43
  5. Step 5: Solve for x
    x = 2,297,790,422.43/53,679.51
  6. Step 6: Final answer
    x = 42,805.73

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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.