Home / 53,120.52-79,631.28-18,036.18

Finding the Fourth Proportional to 53,120.52, 79,631.28 and 18,036.18

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Solution

The fourth proportional to 53,120.52, 79,631.28 and 18,036.18 is: 27,037.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,120.52 : 79,631.28 = 18,036.18 : x
  2. Step 2: Convert to fraction form
    53,120.52/79,631.28 = 18,036.18/x
  3. Step 3: Cross multiply
    53,120.52x = 79,631.28 × 18,036.18
  4. Step 4: Simplify right side
    53,120.52x = 1,436,244,099.71
  5. Step 5: Solve for x
    x = 1,436,244,099.71/53,120.52
  6. Step 6: Final answer
    x = 27,037.46

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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.