Home / 65,637.16-90,573.06-40,481.80

Finding the Fourth Proportional to 65,637.16, 90,573.06 and 40,481.80

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Solution

The fourth proportional to 65,637.16, 90,573.06 and 40,481.80 is: 55,861.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,637.16 : 90,573.06 = 40,481.80 : x
  2. Step 2: Convert to fraction form
    65,637.16/90,573.06 = 40,481.80/x
  3. Step 3: Cross multiply
    65,637.16x = 90,573.06 × 40,481.80
  4. Step 4: Simplify right side
    65,637.16x = 3,666,560,500.31
  5. Step 5: Solve for x
    x = 3,666,560,500.31/65,637.16
  6. Step 6: Final answer
    x = 55,861.05

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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.