Home / 85,280.68-117,688.26-47,555.56

Finding the Fourth Proportional to 85,280.68, 117,688.26 and 47,555.56

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Solution

The fourth proportional to 85,280.68, 117,688.26 and 47,555.56 is: 65,627.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,280.68 : 117,688.26 = 47,555.56 : x
  2. Step 2: Convert to fraction form
    85,280.68/117,688.26 = 47,555.56/x
  3. Step 3: Cross multiply
    85,280.68x = 117,688.26 × 47,555.56
  4. Step 4: Simplify right side
    85,280.68x = 5,596,731,109.73
  5. Step 5: Solve for x
    x = 5,596,731,109.73/85,280.68
  6. Step 6: Final answer
    x = 65,627.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.