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Finding the Fourth Proportional to 70,510.50, 105,755.36 and 23,130.60

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Solution

The fourth proportional to 70,510.50, 105,755.36 and 23,130.60 is: 34,692.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,510.50 : 105,755.36 = 23,130.60 : x
  2. Step 2: Convert to fraction form
    70,510.50/105,755.36 = 23,130.60/x
  3. Step 3: Cross multiply
    70,510.50x = 105,755.36 × 23,130.60
  4. Step 4: Simplify right side
    70,510.50x = 2,446,184,401.24
  5. Step 5: Solve for x
    x = 2,446,184,401.24/70,510.50
  6. Step 6: Final answer
    x = 34,692.49

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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.