Home / 72,650.36-100,302.22-57,603.80

Finding the Fourth Proportional to 72,650.36, 100,302.22 and 57,603.80

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Solution

The fourth proportional to 72,650.36, 100,302.22 and 57,603.80 is: 79,528.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,650.36 : 100,302.22 = 57,603.80 : x
  2. Step 2: Convert to fraction form
    72,650.36/100,302.22 = 57,603.80/x
  3. Step 3: Cross multiply
    72,650.36x = 100,302.22 × 57,603.80
  4. Step 4: Simplify right side
    72,650.36x = 5,777,789,020.44
  5. Step 5: Solve for x
    x = 5,777,789,020.44/72,650.36
  6. Step 6: Final answer
    x = 79,528.70

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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.