Home / 56,818.37-78,409.88-31,325.64

Finding the Fourth Proportional to 56,818.37, 78,409.88 and 31,325.64

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Solution

The fourth proportional to 56,818.37, 78,409.88 and 31,325.64 is: 43,229.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,818.37 : 78,409.88 = 31,325.64 : x
  2. Step 2: Convert to fraction form
    56,818.37/78,409.88 = 31,325.64/x
  3. Step 3: Cross multiply
    56,818.37x = 78,409.88 × 31,325.64
  4. Step 4: Simplify right side
    56,818.37x = 2,456,239,261.82
  5. Step 5: Solve for x
    x = 2,456,239,261.82/56,818.37
  6. Step 6: Final answer
    x = 43,229.67

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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.