Home / 88,373.13-121,914.63-52,542.78

Finding the Fourth Proportional to 88,373.13, 121,914.63 and 52,542.78

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Solution

The fourth proportional to 88,373.13, 121,914.63 and 52,542.78 is: 72,485.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,373.13 : 121,914.63 = 52,542.78 : x
  2. Step 2: Convert to fraction form
    88,373.13/121,914.63 = 52,542.78/x
  3. Step 3: Cross multiply
    88,373.13x = 121,914.63 × 52,542.78
  4. Step 4: Simplify right side
    88,373.13x = 6,405,733,582.87
  5. Step 5: Solve for x
    x = 6,405,733,582.87/88,373.13
  6. Step 6: Final answer
    x = 72,485.08

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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.