Home / 71,009.15-97,998.48-40,391.84

Finding the Fourth Proportional to 71,009.15, 97,998.48 and 40,391.84

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Solution

The fourth proportional to 71,009.15, 97,998.48 and 40,391.84 is: 55,744.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,009.15 : 97,998.48 = 40,391.84 : x
  2. Step 2: Convert to fraction form
    71,009.15/97,998.48 = 40,391.84/x
  3. Step 3: Cross multiply
    71,009.15x = 97,998.48 × 40,391.84
  4. Step 4: Simplify right side
    71,009.15x = 3,958,338,924.40
  5. Step 5: Solve for x
    x = 3,958,338,924.40/71,009.15
  6. Step 6: Final answer
    x = 55,744.07

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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.