Home / 71,996.32-99,355.48-40,160.08

Finding the Fourth Proportional to 71,996.32, 99,355.48 and 40,160.08

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Solution

The fourth proportional to 71,996.32, 99,355.48 and 40,160.08 is: 55,421.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,996.32 : 99,355.48 = 40,160.08 : x
  2. Step 2: Convert to fraction form
    71,996.32/99,355.48 = 40,160.08/x
  3. Step 3: Cross multiply
    71,996.32x = 99,355.48 × 40,160.08
  4. Step 4: Simplify right side
    71,996.32x = 3,990,124,025.24
  5. Step 5: Solve for x
    x = 3,990,124,025.24/71,996.32
  6. Step 6: Final answer
    x = 55,421.22

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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.