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Finding the Fourth Proportional to 70,240.50, 96,932.30 and 45,090

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Solution

The fourth proportional to 70,240.50, 96,932.30 and 45,090 is: 62,224.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,240.50 : 96,932.30 = 45,090 : x
  2. Step 2: Convert to fraction form
    70,240.50/96,932.30 = 45,090/x
  3. Step 3: Cross multiply
    70,240.50x = 96,932.30 × 45,090
  4. Step 4: Simplify right side
    70,240.50x = 4,370,677,181.55
  5. Step 5: Solve for x
    x = 4,370,677,181.55/70,240.50
  6. Step 6: Final answer
    x = 62,224.46

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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.