Home / 54,431.02-81,624.39-16,978.51

Finding the Fourth Proportional to 54,431.02, 81,624.39 and 16,978.51

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Solution

The fourth proportional to 54,431.02, 81,624.39 and 16,978.51 is: 25,460.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,431.02 : 81,624.39 = 16,978.51 : x
  2. Step 2: Convert to fraction form
    54,431.02/81,624.39 = 16,978.51/x
  3. Step 3: Cross multiply
    54,431.02x = 81,624.39 × 16,978.51
  4. Step 4: Simplify right side
    54,431.02x = 1,385,860,521.86
  5. Step 5: Solve for x
    x = 1,385,860,521.86/54,431.02
  6. Step 6: Final answer
    x = 25,460.86

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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.