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Finding the Fourth Proportional to 70,587, 105,877.46 and 17,994.92

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Solution

The fourth proportional to 70,587, 105,877.46 and 17,994.92 is: 26,991.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,587 : 105,877.46 = 17,994.92 : x
  2. Step 2: Convert to fraction form
    70,587/105,877.46 = 17,994.92/x
  3. Step 3: Cross multiply
    70,587x = 105,877.46 × 17,994.92
  4. Step 4: Simplify right side
    70,587x = 1,905,255,803.14
  5. Step 5: Solve for x
    x = 1,905,255,803.14/70,587
  6. Step 6: Final answer
    x = 26,991.60

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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.