Home / 53,386.20-79,991.34-18,306.60

Finding the Fourth Proportional to 53,386.20, 79,991.34 and 18,306.60

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Solution

The fourth proportional to 53,386.20, 79,991.34 and 18,306.60 is: 27,429.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,386.20 : 79,991.34 = 18,306.60 : x
  2. Step 2: Convert to fraction form
    53,386.20/79,991.34 = 18,306.60/x
  3. Step 3: Cross multiply
    53,386.20x = 79,991.34 × 18,306.60
  4. Step 4: Simplify right side
    53,386.20x = 1,464,369,464.84
  5. Step 5: Solve for x
    x = 1,464,369,464.84/53,386.20
  6. Step 6: Final answer
    x = 27,429.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.