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Finding the Fourth Proportional to 67,370.70, 101,070.45 and 20,628.30

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Solution

The fourth proportional to 67,370.70, 101,070.45 and 20,628.30 is: 30,946.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,370.70 : 101,070.45 = 20,628.30 : x
  2. Step 2: Convert to fraction form
    67,370.70/101,070.45 = 20,628.30/x
  3. Step 3: Cross multiply
    67,370.70x = 101,070.45 × 20,628.30
  4. Step 4: Simplify right side
    67,370.70x = 2,084,911,563.74
  5. Step 5: Solve for x
    x = 2,084,911,563.74/67,370.70
  6. Step 6: Final answer
    x = 30,946.86

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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.