Home / 72,555.03-100,118.25-40,727.43

Finding the Fourth Proportional to 72,555.03, 100,118.25 and 40,727.43

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Solution

The fourth proportional to 72,555.03, 100,118.25 and 40,727.43 is: 56,199.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,555.03 : 100,118.25 = 40,727.43 : x
  2. Step 2: Convert to fraction form
    72,555.03/100,118.25 = 40,727.43/x
  3. Step 3: Cross multiply
    72,555.03x = 100,118.25 × 40,727.43
  4. Step 4: Simplify right side
    72,555.03x = 4,077,559,018.60
  5. Step 5: Solve for x
    x = 4,077,559,018.60/72,555.03
  6. Step 6: Final answer
    x = 56,199.54

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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.