Home / 53,746.23-80,619.32-18,685.88

Finding the Fourth Proportional to 53,746.23, 80,619.32 and 18,685.88

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Solution

The fourth proportional to 53,746.23, 80,619.32 and 18,685.88 is: 28,028.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,746.23 : 80,619.32 = 18,685.88 : x
  2. Step 2: Convert to fraction form
    53,746.23/80,619.32 = 18,685.88/x
  3. Step 3: Cross multiply
    53,746.23x = 80,619.32 × 18,685.88
  4. Step 4: Simplify right side
    53,746.23x = 1,506,442,939.20
  5. Step 5: Solve for x
    x = 1,506,442,939.20/53,746.23
  6. Step 6: Final answer
    x = 28,028.81

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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.