Home / 128,492.60-192,746.46-49,607.24

Finding the Fourth Proportional to 128,492.60, 192,746.46 and 49,607.24

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Solution

The fourth proportional to 128,492.60, 192,746.46 and 49,607.24 is: 74,413.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,492.60 : 192,746.46 = 49,607.24 : x
  2. Step 2: Convert to fraction form
    128,492.60/192,746.46 = 49,607.24/x
  3. Step 3: Cross multiply
    128,492.60x = 192,746.46 × 49,607.24
  4. Step 4: Simplify right side
    128,492.60x = 9,561,619,900.37
  5. Step 5: Solve for x
    x = 9,561,619,900.37/128,492.60
  6. Step 6: Final answer
    x = 74,413.78

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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.