Home / 43,409.25-65,113.81-28,510.45

Finding the Fourth Proportional to 43,409.25, 65,113.81 and 28,510.45

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Solution

The fourth proportional to 43,409.25, 65,113.81 and 28,510.45 is: 42,765.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,409.25 : 65,113.81 = 28,510.45 : x
  2. Step 2: Convert to fraction form
    43,409.25/65,113.81 = 28,510.45/x
  3. Step 3: Cross multiply
    43,409.25x = 65,113.81 × 28,510.45
  4. Step 4: Simplify right side
    43,409.25x = 1,856,423,790.25
  5. Step 5: Solve for x
    x = 1,856,423,790.25/43,409.25
  6. Step 6: Final answer
    x = 42,765.63

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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.