Home / 56,829.86-78,424.57-31,338.45

Finding the Fourth Proportional to 56,829.86, 78,424.57 and 31,338.45

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Solution

The fourth proportional to 56,829.86, 78,424.57 and 31,338.45 is: 43,246.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,829.86 : 78,424.57 = 31,338.45 : x
  2. Step 2: Convert to fraction form
    56,829.86/78,424.57 = 31,338.45/x
  3. Step 3: Cross multiply
    56,829.86x = 78,424.57 × 31,338.45
  4. Step 4: Simplify right side
    56,829.86x = 2,457,704,465.72
  5. Step 5: Solve for x
    x = 2,457,704,465.72/56,829.86
  6. Step 6: Final answer
    x = 43,246.71

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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.