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Finding the Fourth Proportional to 82,014.40, 122,924.40 and 42,551.20

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Solution

The fourth proportional to 82,014.40, 122,924.40 and 42,551.20 is: 63,776.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,014.40 : 122,924.40 = 42,551.20 : x
  2. Step 2: Convert to fraction form
    82,014.40/122,924.40 = 42,551.20/x
  3. Step 3: Cross multiply
    82,014.40x = 122,924.40 × 42,551.20
  4. Step 4: Simplify right side
    82,014.40x = 5,230,580,729.28
  5. Step 5: Solve for x
    x = 5,230,580,729.28/82,014.40
  6. Step 6: Final answer
    x = 63,776.37

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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.