Home / 56,494.98-77,960.43-31,000.77

Finding the Fourth Proportional to 56,494.98, 77,960.43 and 31,000.77

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Solution

The fourth proportional to 56,494.98, 77,960.43 and 31,000.77 is: 42,779.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,494.98 : 77,960.43 = 31,000.77 : x
  2. Step 2: Convert to fraction form
    56,494.98/77,960.43 = 31,000.77/x
  3. Step 3: Cross multiply
    56,494.98x = 77,960.43 × 31,000.77
  4. Step 4: Simplify right side
    56,494.98x = 2,416,833,359.53
  5. Step 5: Solve for x
    x = 2,416,833,359.53/56,494.98
  6. Step 6: Final answer
    x = 42,779.61

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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.