Home / 87,297.75-120,465.23-51,479.55

Finding the Fourth Proportional to 87,297.75, 120,465.23 and 51,479.55

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Solution

The fourth proportional to 87,297.75, 120,465.23 and 51,479.55 is: 71,038.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,297.75 : 120,465.23 = 51,479.55 : x
  2. Step 2: Convert to fraction form
    87,297.75/120,465.23 = 51,479.55/x
  3. Step 3: Cross multiply
    87,297.75x = 120,465.23 × 51,479.55
  4. Step 4: Simplify right side
    87,297.75x = 6,201,495,573.65
  5. Step 5: Solve for x
    x = 6,201,495,573.65/87,297.75
  6. Step 6: Final answer
    x = 71,038.44

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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.