Home / 67,941.45-101,915.73-20,555.35

Finding the Fourth Proportional to 67,941.45, 101,915.73 and 20,555.35

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Solution

The fourth proportional to 67,941.45, 101,915.73 and 20,555.35 is: 30,834.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,941.45 : 101,915.73 = 20,555.35 : x
  2. Step 2: Convert to fraction form
    67,941.45/101,915.73 = 20,555.35/x
  3. Step 3: Cross multiply
    67,941.45x = 101,915.73 × 20,555.35
  4. Step 4: Simplify right side
    67,941.45x = 2,094,913,397.88
  5. Step 5: Solve for x
    x = 2,094,913,397.88/67,941.45
  6. Step 6: Final answer
    x = 30,834.10

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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.