Home / 90,829.47-136,253.48-34,716.80

Finding the Fourth Proportional to 90,829.47, 136,253.48 and 34,716.80

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Solution

The fourth proportional to 90,829.47, 136,253.48 and 34,716.80 is: 52,078.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,829.47 : 136,253.48 = 34,716.80 : x
  2. Step 2: Convert to fraction form
    90,829.47/136,253.48 = 34,716.80/x
  3. Step 3: Cross multiply
    90,829.47x = 136,253.48 × 34,716.80
  4. Step 4: Simplify right side
    90,829.47x = 4,730,284,981.51
  5. Step 5: Solve for x
    x = 4,730,284,981.51/90,829.47
  6. Step 6: Final answer
    x = 52,078.75

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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.