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Finding the Fourth Proportional to 45,404.10, 68,106.15 and 40,811.40

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Solution

The fourth proportional to 45,404.10, 68,106.15 and 40,811.40 is: 61,217.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,404.10 : 68,106.15 = 40,811.40 : x
  2. Step 2: Convert to fraction form
    45,404.10/68,106.15 = 40,811.40/x
  3. Step 3: Cross multiply
    45,404.10x = 68,106.15 × 40,811.40
  4. Step 4: Simplify right side
    45,404.10x = 2,779,507,330.11
  5. Step 5: Solve for x
    x = 2,779,507,330.11/45,404.10
  6. Step 6: Final answer
    x = 61,217.10

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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.