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Finding the Fourth Proportional to 57,041.52, 85,636.80 and 45,802.86

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Solution

The fourth proportional to 57,041.52, 85,636.80 and 45,802.86 is: 68,764.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,041.52 : 85,636.80 = 45,802.86 : x
  2. Step 2: Convert to fraction form
    57,041.52/85,636.80 = 45,802.86/x
  3. Step 3: Cross multiply
    57,041.52x = 85,636.80 × 45,802.86
  4. Step 4: Simplify right side
    57,041.52x = 3,922,410,361.25
  5. Step 5: Solve for x
    x = 3,922,410,361.25/57,041.52
  6. Step 6: Final answer
    x = 68,764.13

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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.