Home / 72,100.48-99,494.40-40,271.44

Finding the Fourth Proportional to 72,100.48, 99,494.40 and 40,271.44

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Solution

The fourth proportional to 72,100.48, 99,494.40 and 40,271.44 is: 55,572.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,100.48 : 99,494.40 = 40,271.44 : x
  2. Step 2: Convert to fraction form
    72,100.48/99,494.40 = 40,271.44/x
  3. Step 3: Cross multiply
    72,100.48x = 99,494.40 × 40,271.44
  4. Step 4: Simplify right side
    72,100.48x = 4,006,782,759.94
  5. Step 5: Solve for x
    x = 4,006,782,759.94/72,100.48
  6. Step 6: Final answer
    x = 55,572.21

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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.