Home / 88,009.41-121,459.90-74,322.03

Finding the Fourth Proportional to 88,009.41, 121,459.90 and 74,322.03

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Solution

The fourth proportional to 88,009.41, 121,459.90 and 74,322.03 is: 102,570.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,009.41 : 121,459.90 = 74,322.03 : x
  2. Step 2: Convert to fraction form
    88,009.41/121,459.90 = 74,322.03/x
  3. Step 3: Cross multiply
    88,009.41x = 121,459.90 × 74,322.03
  4. Step 4: Simplify right side
    88,009.41x = 9,027,146,145.79
  5. Step 5: Solve for x
    x = 9,027,146,145.79/88,009.41
  6. Step 6: Final answer
    x = 102,570.24

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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.