Home / 60,084.90-90,142.11-20,642.58

Finding the Fourth Proportional to 60,084.90, 90,142.11 and 20,642.58

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Solution

The fourth proportional to 60,084.90, 90,142.11 and 20,642.58 is: 30,968.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,084.90 : 90,142.11 = 20,642.58 : x
  2. Step 2: Convert to fraction form
    60,084.90/90,142.11 = 20,642.58/x
  3. Step 3: Cross multiply
    60,084.90x = 90,142.11 × 20,642.58
  4. Step 4: Simplify right side
    60,084.90x = 1,860,765,717.04
  5. Step 5: Solve for x
    x = 1,860,765,717.04/60,084.90
  6. Step 6: Final answer
    x = 30,968.94

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1.5x scale

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.