Home / 91,870.85-126,780.82-51,583.68

Finding the Fourth Proportional to 91,870.85, 126,780.82 and 51,583.68

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Solution

The fourth proportional to 91,870.85, 126,780.82 and 51,583.68 is: 71,184.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,870.85 : 126,780.82 = 51,583.68 : x
  2. Step 2: Convert to fraction form
    91,870.85/126,780.82 = 51,583.68/x
  3. Step 3: Cross multiply
    91,870.85x = 126,780.82 × 51,583.68
  4. Step 4: Simplify right side
    91,870.85x = 6,539,821,120.06
  5. Step 5: Solve for x
    x = 6,539,821,120.06/91,870.85
  6. Step 6: Final answer
    x = 71,184.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.