Home / 56,704.60-78,254.94-31,555.72

Finding the Fourth Proportional to 56,704.60, 78,254.94 and 31,555.72

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Solution

The fourth proportional to 56,704.60, 78,254.94 and 31,555.72 is: 43,548.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,704.60 : 78,254.94 = 31,555.72 : x
  2. Step 2: Convert to fraction form
    56,704.60/78,254.94 = 31,555.72/x
  3. Step 3: Cross multiply
    56,704.60x = 78,254.94 × 31,555.72
  4. Step 4: Simplify right side
    56,704.60x = 2,469,390,975.26
  5. Step 5: Solve for x
    x = 2,469,390,975.26/56,704.60
  6. Step 6: Final answer
    x = 43,548.34

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1.5x scale

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.