Home / 70,363.32-105,434.82-42,214.20

Finding the Fourth Proportional to 70,363.32, 105,434.82 and 42,214.20

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Solution

The fourth proportional to 70,363.32, 105,434.82 and 42,214.20 is: 63,255.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,363.32 : 105,434.82 = 42,214.20 : x
  2. Step 2: Convert to fraction form
    70,363.32/105,434.82 = 42,214.20/x
  3. Step 3: Cross multiply
    70,363.32x = 105,434.82 × 42,214.20
  4. Step 4: Simplify right side
    70,363.32x = 4,450,846,578.44
  5. Step 5: Solve for x
    x = 4,450,846,578.44/70,363.32
  6. Step 6: Final answer
    x = 63,255.21

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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.