Home / 88,431.24-121,999.80-52,608.16

Finding the Fourth Proportional to 88,431.24, 121,999.80 and 52,608.16

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Solution

The fourth proportional to 88,431.24, 121,999.80 and 52,608.16 is: 72,578.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,431.24 : 121,999.80 = 52,608.16 : x
  2. Step 2: Convert to fraction form
    88,431.24/121,999.80 = 52,608.16/x
  3. Step 3: Cross multiply
    88,431.24x = 121,999.80 × 52,608.16
  4. Step 4: Simplify right side
    88,431.24x = 6,418,184,998.37
  5. Step 5: Solve for x
    x = 6,418,184,998.37/88,431.24
  6. Step 6: Final answer
    x = 72,578.25

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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.