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Finding the Fourth Proportional to 73,430, 110,139.34 and 23,515.32

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Solution

The fourth proportional to 73,430, 110,139.34 and 23,515.32 is: 35,271.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,430 : 110,139.34 = 23,515.32 : x
  2. Step 2: Convert to fraction form
    73,430/110,139.34 = 23,515.32/x
  3. Step 3: Cross multiply
    73,430x = 110,139.34 × 23,515.32
  4. Step 4: Simplify right side
    73,430x = 2,589,961,824.69
  5. Step 5: Solve for x
    x = 2,589,961,824.69/73,430
  6. Step 6: Final answer
    x = 35,271.17

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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.