Home / 72,025.26-99,401.46-39,765.64

Finding the Fourth Proportional to 72,025.26, 99,401.46 and 39,765.64

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Solution

The fourth proportional to 72,025.26, 99,401.46 and 39,765.64 is: 54,880.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,025.26 : 99,401.46 = 39,765.64 : x
  2. Step 2: Convert to fraction form
    72,025.26/99,401.46 = 39,765.64/x
  3. Step 3: Cross multiply
    72,025.26x = 99,401.46 × 39,765.64
  4. Step 4: Simplify right side
    72,025.26x = 3,952,762,574.45
  5. Step 5: Solve for x
    x = 3,952,762,574.45/72,025.26
  6. Step 6: Final answer
    x = 54,880.23

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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.