Home / 79,030.98-109,102.41-61,085.43

Finding the Fourth Proportional to 79,030.98, 109,102.41 and 61,085.43

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Solution

The fourth proportional to 79,030.98, 109,102.41 and 61,085.43 is: 84,328.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,030.98 : 109,102.41 = 61,085.43 : x
  2. Step 2: Convert to fraction form
    79,030.98/109,102.41 = 61,085.43/x
  3. Step 3: Cross multiply
    79,030.98x = 109,102.41 × 61,085.43
  4. Step 4: Simplify right side
    79,030.98x = 6,664,567,628.89
  5. Step 5: Solve for x
    x = 6,664,567,628.89/79,030.98
  6. Step 6: Final answer
    x = 84,328.55

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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.