Home / 71,220.51-106,791.35-29,130.15

Finding the Fourth Proportional to 71,220.51, 106,791.35 and 29,130.15

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Solution

The fourth proportional to 71,220.51, 106,791.35 and 29,130.15 is: 43,679.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,220.51 : 106,791.35 = 29,130.15 : x
  2. Step 2: Convert to fraction form
    71,220.51/106,791.35 = 29,130.15/x
  3. Step 3: Cross multiply
    71,220.51x = 106,791.35 × 29,130.15
  4. Step 4: Simplify right side
    71,220.51x = 3,110,847,898.55
  5. Step 5: Solve for x
    x = 3,110,847,898.55/71,220.51
  6. Step 6: Final answer
    x = 43,679.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.