Home / 56,129.20-77,467.92-53,606.86

Finding the Fourth Proportional to 56,129.20, 77,467.92 and 53,606.86

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Solution

The fourth proportional to 56,129.20, 77,467.92 and 53,606.86 is: 73,986.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,129.20 : 77,467.92 = 53,606.86 : x
  2. Step 2: Convert to fraction form
    56,129.20/77,467.92 = 53,606.86/x
  3. Step 3: Cross multiply
    56,129.20x = 77,467.92 × 53,606.86
  4. Step 4: Simplify right side
    56,129.20x = 4,152,811,941.93
  5. Step 5: Solve for x
    x = 4,152,811,941.93/56,129.20
  6. Step 6: Final answer
    x = 73,986.66

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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.