Home / 72,762.45-100,409.23-40,496.16

Finding the Fourth Proportional to 72,762.45, 100,409.23 and 40,496.16

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Solution

The fourth proportional to 72,762.45, 100,409.23 and 40,496.16 is: 55,883.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,762.45 : 100,409.23 = 40,496.16 : x
  2. Step 2: Convert to fraction form
    72,762.45/100,409.23 = 40,496.16/x
  3. Step 3: Cross multiply
    72,762.45x = 100,409.23 × 40,496.16
  4. Step 4: Simplify right side
    72,762.45x = 4,066,188,243.56
  5. Step 5: Solve for x
    x = 4,066,188,243.56/72,762.45
  6. Step 6: Final answer
    x = 55,883.06

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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.