Home / 90,929.60-136,038-59,825.60

Finding the Fourth Proportional to 90,929.60, 136,038 and 59,825.60

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Solution

The fourth proportional to 90,929.60, 136,038 and 59,825.60 is: 89,503.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,929.60 : 136,038 = 59,825.60 : x
  2. Step 2: Convert to fraction form
    90,929.60/136,038 = 59,825.60/x
  3. Step 3: Cross multiply
    90,929.60x = 136,038 × 59,825.60
  4. Step 4: Simplify right side
    90,929.60x = 8,138,554,972.80
  5. Step 5: Solve for x
    x = 8,138,554,972.80/90,929.60
  6. Step 6: Final answer
    x = 89,503.91

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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.