Home / 56,928.30-85,392.45-51,290.70

Finding the Fourth Proportional to 56,928.30, 85,392.45 and 51,290.70

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Solution

The fourth proportional to 56,928.30, 85,392.45 and 51,290.70 is: 76,936.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,928.30 : 85,392.45 = 51,290.70 : x
  2. Step 2: Convert to fraction form
    56,928.30/85,392.45 = 51,290.70/x
  3. Step 3: Cross multiply
    56,928.30x = 85,392.45 × 51,290.70
  4. Step 4: Simplify right side
    56,928.30x = 4,379,838,535.22
  5. Step 5: Solve for x
    x = 4,379,838,535.22/56,928.30
  6. Step 6: Final answer
    x = 76,936.05

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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.