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Finding the Fourth Proportional to 45,459.80, 68,189.70 and 29,713.40

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Solution

The fourth proportional to 45,459.80, 68,189.70 and 29,713.40 is: 44,570.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,459.80 : 68,189.70 = 29,713.40 : x
  2. Step 2: Convert to fraction form
    45,459.80/68,189.70 = 29,713.40/x
  3. Step 3: Cross multiply
    45,459.80x = 68,189.70 × 29,713.40
  4. Step 4: Simplify right side
    45,459.80x = 2,026,147,831.98
  5. Step 5: Solve for x
    x = 2,026,147,831.98/45,459.80
  6. Step 6: Final answer
    x = 44,570.10

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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.