Home / 81,254.21-121,863.29-59,078.03

Finding the Fourth Proportional to 81,254.21, 121,863.29 and 59,078.03

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Solution

The fourth proportional to 81,254.21, 121,863.29 and 59,078.03 is: 88,603.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,254.21 : 121,863.29 = 59,078.03 : x
  2. Step 2: Convert to fraction form
    81,254.21/121,863.29 = 59,078.03/x
  3. Step 3: Cross multiply
    81,254.21x = 121,863.29 × 59,078.03
  4. Step 4: Simplify right side
    81,254.21x = 7,199,442,197.81
  5. Step 5: Solve for x
    x = 7,199,442,197.81/81,254.21
  6. Step 6: Final answer
    x = 88,603.93

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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.