Home / 72,033.84-99,406.67-39,768.44

Finding the Fourth Proportional to 72,033.84, 99,406.67 and 39,768.44

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Solution

The fourth proportional to 72,033.84, 99,406.67 and 39,768.44 is: 54,880.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,033.84 : 99,406.67 = 39,768.44 : x
  2. Step 2: Convert to fraction form
    72,033.84/99,406.67 = 39,768.44/x
  3. Step 3: Cross multiply
    72,033.84x = 99,406.67 × 39,768.44
  4. Step 4: Simplify right side
    72,033.84x = 3,953,247,495.62
  5. Step 5: Solve for x
    x = 3,953,247,495.62/72,033.84
  6. Step 6: Final answer
    x = 54,880.42

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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.