Home / 56,669.37-78,205.61-31,178.67

Finding the Fourth Proportional to 56,669.37, 78,205.61 and 31,178.67

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Solution

The fourth proportional to 56,669.37, 78,205.61 and 31,178.67 is: 43,027.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,669.37 : 78,205.61 = 31,178.67 : x
  2. Step 2: Convert to fraction form
    56,669.37/78,205.61 = 31,178.67/x
  3. Step 3: Cross multiply
    56,669.37x = 78,205.61 × 31,178.67
  4. Step 4: Simplify right side
    56,669.37x = 2,438,346,906.34
  5. Step 5: Solve for x
    x = 2,438,346,906.34/56,669.37
  6. Step 6: Final answer
    x = 43,027.60

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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.