Home / 63,443.01-87,511.75-40,811.51

Finding the Fourth Proportional to 63,443.01, 87,511.75 and 40,811.51

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Solution

The fourth proportional to 63,443.01, 87,511.75 and 40,811.51 is: 56,294.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,443.01 : 87,511.75 = 40,811.51 : x
  2. Step 2: Convert to fraction form
    63,443.01/87,511.75 = 40,811.51/x
  3. Step 3: Cross multiply
    63,443.01x = 87,511.75 × 40,811.51
  4. Step 4: Simplify right side
    63,443.01x = 3,571,486,120.65
  5. Step 5: Solve for x
    x = 3,571,486,120.65/63,443.01
  6. Step 6: Final answer
    x = 56,294.40

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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.