Home / 51,878.88-77,701.20-31,058.40

Finding the Fourth Proportional to 51,878.88, 77,701.20 and 31,058.40

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Solution

The fourth proportional to 51,878.88, 77,701.20 and 31,058.40 is: 46,517.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,878.88 : 77,701.20 = 31,058.40 : x
  2. Step 2: Convert to fraction form
    51,878.88/77,701.20 = 31,058.40/x
  3. Step 3: Cross multiply
    51,878.88x = 77,701.20 × 31,058.40
  4. Step 4: Simplify right side
    51,878.88x = 2,413,274,950.08
  5. Step 5: Solve for x
    x = 2,413,274,950.08/51,878.88
  6. Step 6: Final answer
    x = 46,517.48

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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.