Home / 56,795.42-78,378.20-31,302.70

Finding the Fourth Proportional to 56,795.42, 78,378.20 and 31,302.70

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Solution

The fourth proportional to 56,795.42, 78,378.20 and 31,302.70 is: 43,198.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,795.42 : 78,378.20 = 31,302.70 : x
  2. Step 2: Convert to fraction form
    56,795.42/78,378.20 = 31,302.70/x
  3. Step 3: Cross multiply
    56,795.42x = 78,378.20 × 31,302.70
  4. Step 4: Simplify right side
    56,795.42x = 2,453,449,281.14
  5. Step 5: Solve for x
    x = 2,453,449,281.14/56,795.42
  6. Step 6: Final answer
    x = 43,198.01

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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.