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Finding the Fourth Proportional to 73,071.36, 100,820.88 and 44,390.20

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Solution

The fourth proportional to 73,071.36, 100,820.88 and 44,390.20 is: 61,247.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,071.36 : 100,820.88 = 44,390.20 : x
  2. Step 2: Convert to fraction form
    73,071.36/100,820.88 = 44,390.20/x
  3. Step 3: Cross multiply
    73,071.36x = 100,820.88 × 44,390.20
  4. Step 4: Simplify right side
    73,071.36x = 4,475,459,027.38
  5. Step 5: Solve for x
    x = 4,475,459,027.38/73,071.36
  6. Step 6: Final answer
    x = 61,247.79

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1.5x scale

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.