Home / 53,929.12-74,422.43-31,281.52

Finding the Fourth Proportional to 53,929.12, 74,422.43 and 31,281.52

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Solution

The fourth proportional to 53,929.12, 74,422.43 and 31,281.52 is: 43,168.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,929.12 : 74,422.43 = 31,281.52 : x
  2. Step 2: Convert to fraction form
    53,929.12/74,422.43 = 31,281.52/x
  3. Step 3: Cross multiply
    53,929.12x = 74,422.43 × 31,281.52
  4. Step 4: Simplify right side
    53,929.12x = 2,328,046,624.64
  5. Step 5: Solve for x
    x = 2,328,046,624.64/53,929.12
  6. Step 6: Final answer
    x = 43,168.64

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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.