Home / 63,887.08-88,129.47-40,009.09

Finding the Fourth Proportional to 63,887.08, 88,129.47 and 40,009.09

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Solution

The fourth proportional to 63,887.08, 88,129.47 and 40,009.09 is: 55,190.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,887.08 : 88,129.47 = 40,009.09 : x
  2. Step 2: Convert to fraction form
    63,887.08/88,129.47 = 40,009.09/x
  3. Step 3: Cross multiply
    63,887.08x = 88,129.47 × 40,009.09
  4. Step 4: Simplify right side
    63,887.08x = 3,525,979,896.88
  5. Step 5: Solve for x
    x = 3,525,979,896.88/63,887.08
  6. Step 6: Final answer
    x = 55,190.81

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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.