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Finding the Fourth Proportional to 70,300.90, 105,460.60 and 25,958.80

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Solution

The fourth proportional to 70,300.90, 105,460.60 and 25,958.80 is: 38,941.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,300.90 : 105,460.60 = 25,958.80 : x
  2. Step 2: Convert to fraction form
    70,300.90/105,460.60 = 25,958.80/x
  3. Step 3: Cross multiply
    70,300.90x = 105,460.60 × 25,958.80
  4. Step 4: Simplify right side
    70,300.90x = 2,737,630,623.28
  5. Step 5: Solve for x
    x = 2,737,630,623.28/70,300.90
  6. Step 6: Final answer
    x = 38,941.62

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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.