Home / 56,998.64-85,515.26-40,390.80

Finding the Fourth Proportional to 56,998.64, 85,515.26 and 40,390.80

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Solution

The fourth proportional to 56,998.64, 85,515.26 and 40,390.80 is: 60,598.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,998.64 : 85,515.26 = 40,390.80 : x
  2. Step 2: Convert to fraction form
    56,998.64/85,515.26 = 40,390.80/x
  3. Step 3: Cross multiply
    56,998.64x = 85,515.26 × 40,390.80
  4. Step 4: Simplify right side
    56,998.64x = 3,454,029,561.65
  5. Step 5: Solve for x
    x = 3,454,029,561.65/56,998.64
  6. Step 6: Final answer
    x = 60,598.46

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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.