Home / 72,836.19-109,254.32-20,246.13

Finding the Fourth Proportional to 72,836.19, 109,254.32 and 20,246.13

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Solution

The fourth proportional to 72,836.19, 109,254.32 and 20,246.13 is: 30,369.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,836.19 : 109,254.32 = 20,246.13 : x
  2. Step 2: Convert to fraction form
    72,836.19/109,254.32 = 20,246.13/x
  3. Step 3: Cross multiply
    72,836.19x = 109,254.32 × 20,246.13
  4. Step 4: Simplify right side
    72,836.19x = 2,211,977,064.55
  5. Step 5: Solve for x
    x = 2,211,977,064.55/72,836.19
  6. Step 6: Final answer
    x = 30,369.20

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Double scale
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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.