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Finding the Fourth Proportional to 79,225.30, 109,333.93 and 45,239.32

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Solution

The fourth proportional to 79,225.30, 109,333.93 and 45,239.32 is: 62,431.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,225.30 : 109,333.93 = 45,239.32 : x
  2. Step 2: Convert to fraction form
    79,225.30/109,333.93 = 45,239.32/x
  3. Step 3: Cross multiply
    79,225.30x = 109,333.93 × 45,239.32
  4. Step 4: Simplify right side
    79,225.30x = 4,946,192,259.69
  5. Step 5: Solve for x
    x = 4,946,192,259.69/79,225.30
  6. Step 6: Final answer
    x = 62,431.98

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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.