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Finding the Fourth Proportional to 79,355.99, 109,511.21 and 45,365.23

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Solution

The fourth proportional to 79,355.99, 109,511.21 and 45,365.23 is: 62,603.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,355.99 : 109,511.21 = 45,365.23 : x
  2. Step 2: Convert to fraction form
    79,355.99/109,511.21 = 45,365.23/x
  3. Step 3: Cross multiply
    79,355.99x = 109,511.21 × 45,365.23
  4. Step 4: Simplify right side
    79,355.99x = 4,968,000,608.35
  5. Step 5: Solve for x
    x = 4,968,000,608.35/79,355.99
  6. Step 6: Final answer
    x = 62,603.98

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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.