Home / 63,438.90-87,555-36,576.15

Finding the Fourth Proportional to 63,438.90, 87,555 and 36,576.15

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Solution

The fourth proportional to 63,438.90, 87,555 and 36,576.15 is: 50,480.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,438.90 : 87,555 = 36,576.15 : x
  2. Step 2: Convert to fraction form
    63,438.90/87,555 = 36,576.15/x
  3. Step 3: Cross multiply
    63,438.90x = 87,555 × 36,576.15
  4. Step 4: Simplify right side
    63,438.90x = 3,202,424,813.25
  5. Step 5: Solve for x
    x = 3,202,424,813.25/63,438.90
  6. Step 6: Final answer
    x = 50,480.46

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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.