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Finding the Fourth Proportional to 70,401.06, 105,579.72 and 23,643

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Solution

The fourth proportional to 70,401.06, 105,579.72 and 23,643 is: 35,457.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,401.06 : 105,579.72 = 23,643 : x
  2. Step 2: Convert to fraction form
    70,401.06/105,579.72 = 23,643/x
  3. Step 3: Cross multiply
    70,401.06x = 105,579.72 × 23,643
  4. Step 4: Simplify right side
    70,401.06x = 2,496,221,319.96
  5. Step 5: Solve for x
    x = 2,496,221,319.96/70,401.06
  6. Step 6: Final answer
    x = 35,457.16

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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.