Home / 96,904.40-145,270.20-57,419.60

Finding the Fourth Proportional to 96,904.40, 145,270.20 and 57,419.60

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Solution

The fourth proportional to 96,904.40, 145,270.20 and 57,419.60 is: 86,078.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,904.40 : 145,270.20 = 57,419.60 : x
  2. Step 2: Convert to fraction form
    96,904.40/145,270.20 = 57,419.60/x
  3. Step 3: Cross multiply
    96,904.40x = 145,270.20 × 57,419.60
  4. Step 4: Simplify right side
    96,904.40x = 8,341,356,775.92
  5. Step 5: Solve for x
    x = 8,341,356,775.92/96,904.40
  6. Step 6: Final answer
    x = 86,078.20

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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.