Home / 45,556.02-68,331.60-12,275.55

Finding the Fourth Proportional to 45,556.02, 68,331.60 and 12,275.55

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Solution

The fourth proportional to 45,556.02, 68,331.60 and 12,275.55 is: 18,412.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,556.02 : 68,331.60 = 12,275.55 : x
  2. Step 2: Convert to fraction form
    45,556.02/68,331.60 = 12,275.55/x
  3. Step 3: Cross multiply
    45,556.02x = 68,331.60 × 12,275.55
  4. Step 4: Simplify right side
    45,556.02x = 838,807,972.38
  5. Step 5: Solve for x
    x = 838,807,972.38/45,556.02
  6. Step 6: Final answer
    x = 18,412.67

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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.