Home / 53,955.21-74,438.64-31,281.72

Finding the Fourth Proportional to 53,955.21, 74,438.64 and 31,281.72

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Solution

The fourth proportional to 53,955.21, 74,438.64 and 31,281.72 is: 43,157.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,955.21 : 74,438.64 = 31,281.72 : x
  2. Step 2: Convert to fraction form
    53,955.21/74,438.64 = 31,281.72/x
  3. Step 3: Cross multiply
    53,955.21x = 74,438.64 × 31,281.72
  4. Step 4: Simplify right side
    53,955.21x = 2,328,568,693.66
  5. Step 5: Solve for x
    x = 2,328,568,693.66/53,955.21
  6. Step 6: Final answer
    x = 43,157.44

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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.