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Finding the Fourth Proportional to 70,230.75, 96,920.19 and 42,635.75

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Solution

The fourth proportional to 70,230.75, 96,920.19 and 42,635.75 is: 58,838.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,230.75 : 96,920.19 = 42,635.75 : x
  2. Step 2: Convert to fraction form
    70,230.75/96,920.19 = 42,635.75/x
  3. Step 3: Cross multiply
    70,230.75x = 96,920.19 × 42,635.75
  4. Step 4: Simplify right side
    70,230.75x = 4,132,264,506.19
  5. Step 5: Solve for x
    x = 4,132,264,506.19/70,230.75
  6. Step 6: Final answer
    x = 58,838.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.