Home / 56,521.39-84,781.22-19,107.74

Finding the Fourth Proportional to 56,521.39, 84,781.22 and 19,107.74

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Solution

The fourth proportional to 56,521.39, 84,781.22 and 19,107.74 is: 28,661.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,521.39 : 84,781.22 = 19,107.74 : x
  2. Step 2: Convert to fraction form
    56,521.39/84,781.22 = 19,107.74/x
  3. Step 3: Cross multiply
    56,521.39x = 84,781.22 × 19,107.74
  4. Step 4: Simplify right side
    56,521.39x = 1,619,977,307.13
  5. Step 5: Solve for x
    x = 1,619,977,307.13/56,521.39
  6. Step 6: Final answer
    x = 28,661.32

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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.