Home / 56,155.59-84,211.92-18,708.48

Finding the Fourth Proportional to 56,155.59, 84,211.92 and 18,708.48

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Solution

The fourth proportional to 56,155.59, 84,211.92 and 18,708.48 is: 28,055.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,155.59 : 84,211.92 = 18,708.48 : x
  2. Step 2: Convert to fraction form
    56,155.59/84,211.92 = 18,708.48/x
  3. Step 3: Cross multiply
    56,155.59x = 84,211.92 × 18,708.48
  4. Step 4: Simplify right side
    56,155.59x = 1,575,477,021.08
  5. Step 5: Solve for x
    x = 1,575,477,021.08/56,155.59
  6. Step 6: Final answer
    x = 28,055.57

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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.