Home / 71,147.01-98,184.84-39,317.91

Finding the Fourth Proportional to 71,147.01, 98,184.84 and 39,317.91

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Solution

The fourth proportional to 71,147.01, 98,184.84 and 39,317.91 is: 54,259.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,147.01 : 98,184.84 = 39,317.91 : x
  2. Step 2: Convert to fraction form
    71,147.01/98,184.84 = 39,317.91/x
  3. Step 3: Cross multiply
    71,147.01x = 98,184.84 × 39,317.91
  4. Step 4: Simplify right side
    71,147.01x = 3,860,422,702.48
  5. Step 5: Solve for x
    x = 3,860,422,702.48/71,147.01
  6. Step 6: Final answer
    x = 54,259.80

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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.