Home / 45,905.20-68,857.80-45,613.60

Finding the Fourth Proportional to 45,905.20, 68,857.80 and 45,613.60

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Solution

The fourth proportional to 45,905.20, 68,857.80 and 45,613.60 is: 68,420.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,905.20 : 68,857.80 = 45,613.60 : x
  2. Step 2: Convert to fraction form
    45,905.20/68,857.80 = 45,613.60/x
  3. Step 3: Cross multiply
    45,905.20x = 68,857.80 × 45,613.60
  4. Step 4: Simplify right side
    45,905.20x = 3,140,852,146.08
  5. Step 5: Solve for x
    x = 3,140,852,146.08/45,905.20
  6. Step 6: Final answer
    x = 68,420.40

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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.