Home / 54,117.55-81,012.30-40,886.20

Finding the Fourth Proportional to 54,117.55, 81,012.30 and 40,886.20

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Solution

The fourth proportional to 54,117.55, 81,012.30 and 40,886.20 is: 61,205.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,117.55 : 81,012.30 = 40,886.20 : x
  2. Step 2: Convert to fraction form
    54,117.55/81,012.30 = 40,886.20/x
  3. Step 3: Cross multiply
    54,117.55x = 81,012.30 × 40,886.20
  4. Step 4: Simplify right side
    54,117.55x = 3,312,285,100.26
  5. Step 5: Solve for x
    x = 3,312,285,100.26/54,117.55
  6. Step 6: Final answer
    x = 61,205.38

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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.