Home / 53,967.12-74,479.20-30,090.72

Finding the Fourth Proportional to 53,967.12, 74,479.20 and 30,090.72

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Solution

The fourth proportional to 53,967.12, 74,479.20 and 30,090.72 is: 41,527.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,967.12 : 74,479.20 = 30,090.72 : x
  2. Step 2: Convert to fraction form
    53,967.12/74,479.20 = 30,090.72/x
  3. Step 3: Cross multiply
    53,967.12x = 74,479.20 × 30,090.72
  4. Step 4: Simplify right side
    53,967.12x = 2,241,132,753.02
  5. Step 5: Solve for x
    x = 2,241,132,753.02/53,967.12
  6. Step 6: Final answer
    x = 41,527.74

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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.