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Finding the Fourth Proportional to 70,415.50, 105,629.77 and 23,030.86

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Solution

The fourth proportional to 70,415.50, 105,629.77 and 23,030.86 is: 34,548.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,415.50 : 105,629.77 = 23,030.86 : x
  2. Step 2: Convert to fraction form
    70,415.50/105,629.77 = 23,030.86/x
  3. Step 3: Cross multiply
    70,415.50x = 105,629.77 × 23,030.86
  4. Step 4: Simplify right side
    70,415.50x = 2,432,744,444.70
  5. Step 5: Solve for x
    x = 2,432,744,444.70/70,415.50
  6. Step 6: Final answer
    x = 34,548.42

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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.