Home / 71,415.08-107,131.92-26,430.32

Finding the Fourth Proportional to 71,415.08, 107,131.92 and 26,430.32

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Solution

The fourth proportional to 71,415.08, 107,131.92 and 26,430.32 is: 39,648.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,415.08 : 107,131.92 = 26,430.32 : x
  2. Step 2: Convert to fraction form
    71,415.08/107,131.92 = 26,430.32/x
  3. Step 3: Cross multiply
    71,415.08x = 107,131.92 × 26,430.32
  4. Step 4: Simplify right side
    71,415.08x = 2,831,530,927.81
  5. Step 5: Solve for x
    x = 2,831,530,927.81/71,415.08
  6. Step 6: Final answer
    x = 39,648.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.