Home / 65,511.27-90,405.86-37,218.51

Finding the Fourth Proportional to 65,511.27, 90,405.86 and 37,218.51

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Solution

The fourth proportional to 65,511.27, 90,405.86 and 37,218.51 is: 51,361.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,511.27 : 90,405.86 = 37,218.51 : x
  2. Step 2: Convert to fraction form
    65,511.27/90,405.86 = 37,218.51/x
  3. Step 3: Cross multiply
    65,511.27x = 90,405.86 × 37,218.51
  4. Step 4: Simplify right side
    65,511.27x = 3,364,771,218.38
  5. Step 5: Solve for x
    x = 3,364,771,218.38/65,511.27
  6. Step 6: Final answer
    x = 51,361.72

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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.