Home / 83,420.12-125,131.74-27,260.36

Finding the Fourth Proportional to 83,420.12, 125,131.74 and 27,260.36

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Solution

The fourth proportional to 83,420.12, 125,131.74 and 27,260.36 is: 40,891.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,420.12 : 125,131.74 = 27,260.36 : x
  2. Step 2: Convert to fraction form
    83,420.12/125,131.74 = 27,260.36/x
  3. Step 3: Cross multiply
    83,420.12x = 125,131.74 × 27,260.36
  4. Step 4: Simplify right side
    83,420.12x = 3,411,136,279.83
  5. Step 5: Solve for x
    x = 3,411,136,279.83/83,420.12
  6. Step 6: Final answer
    x = 40,891.05

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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.