Home / 72,768.08-109,022.27-39,466.91

Finding the Fourth Proportional to 72,768.08, 109,022.27 and 39,466.91

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Solution

The fourth proportional to 72,768.08, 109,022.27 and 39,466.91 is: 59,129.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,768.08 : 109,022.27 = 39,466.91 : x
  2. Step 2: Convert to fraction form
    72,768.08/109,022.27 = 39,466.91/x
  3. Step 3: Cross multiply
    72,768.08x = 109,022.27 × 39,466.91
  4. Step 4: Simplify right side
    72,768.08x = 4,302,772,118.09
  5. Step 5: Solve for x
    x = 4,302,772,118.09/72,768.08
  6. Step 6: Final answer
    x = 59,129.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.