Home / 45,713.40-68,570.10-28,126.20

Finding the Fourth Proportional to 45,713.40, 68,570.10 and 28,126.20

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Solution

The fourth proportional to 45,713.40, 68,570.10 and 28,126.20 is: 42,189.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,713.40 : 68,570.10 = 28,126.20 : x
  2. Step 2: Convert to fraction form
    45,713.40/68,570.10 = 28,126.20/x
  3. Step 3: Cross multiply
    45,713.40x = 68,570.10 × 28,126.20
  4. Step 4: Simplify right side
    45,713.40x = 1,928,616,346.62
  5. Step 5: Solve for x
    x = 1,928,616,346.62/45,713.40
  6. Step 6: Final answer
    x = 42,189.30

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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.