Home / 56,995.72-78,651.65-31,500.77

Finding the Fourth Proportional to 56,995.72, 78,651.65 and 31,500.77

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Solution

The fourth proportional to 56,995.72, 78,651.65 and 31,500.77 is: 43,469.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,995.72 : 78,651.65 = 31,500.77 : x
  2. Step 2: Convert to fraction form
    56,995.72/78,651.65 = 31,500.77/x
  3. Step 3: Cross multiply
    56,995.72x = 78,651.65 × 31,500.77
  4. Step 4: Simplify right side
    56,995.72x = 2,477,587,615.52
  5. Step 5: Solve for x
    x = 2,477,587,615.52/56,995.72
  6. Step 6: Final answer
    x = 43,469.71

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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.