Home / 45,739.93-68,600.30-12,900.25

Finding the Fourth Proportional to 45,739.93, 68,600.30 and 12,900.25

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Solution

The fourth proportional to 45,739.93, 68,600.30 and 12,900.25 is: 19,347.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,739.93 : 68,600.30 = 12,900.25 : x
  2. Step 2: Convert to fraction form
    45,739.93/68,600.30 = 12,900.25/x
  3. Step 3: Cross multiply
    45,739.93x = 68,600.30 × 12,900.25
  4. Step 4: Simplify right side
    45,739.93x = 884,960,955.57
  5. Step 5: Solve for x
    x = 884,960,955.57/45,739.93
  6. Step 6: Final answer
    x = 19,347.67

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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.