Home / 56,181.72-77,529.24-30,688.77

Finding the Fourth Proportional to 56,181.72, 77,529.24 and 30,688.77

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Solution

The fourth proportional to 56,181.72, 77,529.24 and 30,688.77 is: 42,349.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,181.72 : 77,529.24 = 30,688.77 : x
  2. Step 2: Convert to fraction form
    56,181.72/77,529.24 = 30,688.77/x
  3. Step 3: Cross multiply
    56,181.72x = 77,529.24 × 30,688.77
  4. Step 4: Simplify right side
    56,181.72x = 2,379,277,014.63
  5. Step 5: Solve for x
    x = 2,379,277,014.63/56,181.72
  6. Step 6: Final answer
    x = 42,349.66

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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.