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Finding the Fourth Proportional to 43,756.70, 65,525.70 and 28,885.10

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Solution

The fourth proportional to 43,756.70, 65,525.70 and 28,885.10 is: 43,255.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,756.70 : 65,525.70 = 28,885.10 : x
  2. Step 2: Convert to fraction form
    43,756.70/65,525.70 = 28,885.10/x
  3. Step 3: Cross multiply
    43,756.70x = 65,525.70 × 28,885.10
  4. Step 4: Simplify right side
    43,756.70x = 1,892,716,397.07
  5. Step 5: Solve for x
    x = 1,892,716,397.07/43,756.70
  6. Step 6: Final answer
    x = 43,255.46

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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.