Home / 56,143.39-84,218.73-18,701.95

Finding the Fourth Proportional to 56,143.39, 84,218.73 and 18,701.95

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Solution

The fourth proportional to 56,143.39, 84,218.73 and 18,701.95 is: 28,054.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,143.39 : 84,218.73 = 18,701.95 : x
  2. Step 2: Convert to fraction form
    56,143.39/84,218.73 = 18,701.95/x
  3. Step 3: Cross multiply
    56,143.39x = 84,218.73 × 18,701.95
  4. Step 4: Simplify right side
    56,143.39x = 1,575,054,477.52
  5. Step 5: Solve for x
    x = 1,575,054,477.52/56,143.39
  6. Step 6: Final answer
    x = 28,054.14

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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.