Home / 71,858.09-99,157.73-40,026.30

Finding the Fourth Proportional to 71,858.09, 99,157.73 and 40,026.30

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Solution

The fourth proportional to 71,858.09, 99,157.73 and 40,026.30 is: 55,232.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,858.09 : 99,157.73 = 40,026.30 : x
  2. Step 2: Convert to fraction form
    71,858.09/99,157.73 = 40,026.30/x
  3. Step 3: Cross multiply
    71,858.09x = 99,157.73 × 40,026.30
  4. Step 4: Simplify right side
    71,858.09x = 3,968,916,848.17
  5. Step 5: Solve for x
    x = 3,968,916,848.17/71,858.09
  6. Step 6: Final answer
    x = 55,232.71

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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.