Home / 70,408.23-105,612.56-17,817.70

Finding the Fourth Proportional to 70,408.23, 105,612.56 and 17,817.70

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Solution

The fourth proportional to 70,408.23, 105,612.56 and 17,817.70 is: 26,726.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,408.23 : 105,612.56 = 17,817.70 : x
  2. Step 2: Convert to fraction form
    70,408.23/105,612.56 = 17,817.70/x
  3. Step 3: Cross multiply
    70,408.23x = 105,612.56 × 17,817.70
  4. Step 4: Simplify right side
    70,408.23x = 1,881,772,910.31
  5. Step 5: Solve for x
    x = 1,881,772,910.31/70,408.23
  6. Step 6: Final answer
    x = 26,726.60

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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.