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Finding the Fourth Proportional to 70,025.08, 105,042.41 and 20,101.34

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Solution

The fourth proportional to 70,025.08, 105,042.41 and 20,101.34 is: 30,153.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,025.08 : 105,042.41 = 20,101.34 : x
  2. Step 2: Convert to fraction form
    70,025.08/105,042.41 = 20,101.34/x
  3. Step 3: Cross multiply
    70,025.08x = 105,042.41 × 20,101.34
  4. Step 4: Simplify right side
    70,025.08x = 2,111,492,572.11
  5. Step 5: Solve for x
    x = 2,111,492,572.11/70,025.08
  6. Step 6: Final answer
    x = 30,153.38

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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.