Home / 72,600.06-100,182.36-40,762.80

Finding the Fourth Proportional to 72,600.06, 100,182.36 and 40,762.80

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Solution

The fourth proportional to 72,600.06, 100,182.36 and 40,762.80 is: 56,249.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,600.06 : 100,182.36 = 40,762.80 : x
  2. Step 2: Convert to fraction form
    72,600.06/100,182.36 = 40,762.80/x
  3. Step 3: Cross multiply
    72,600.06x = 100,182.36 × 40,762.80
  4. Step 4: Simplify right side
    72,600.06x = 4,083,713,504.21
  5. Step 5: Solve for x
    x = 4,083,713,504.21/72,600.06
  6. Step 6: Final answer
    x = 56,249.45

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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.