Home / 56,513.18-77,989.14-31,021.94

Finding the Fourth Proportional to 56,513.18, 77,989.14 and 31,021.94

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Solution

The fourth proportional to 56,513.18, 77,989.14 and 31,021.94 is: 42,810.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,513.18 : 77,989.14 = 31,021.94 : x
  2. Step 2: Convert to fraction form
    56,513.18/77,989.14 = 31,021.94/x
  3. Step 3: Cross multiply
    56,513.18x = 77,989.14 × 31,021.94
  4. Step 4: Simplify right side
    56,513.18x = 2,419,374,421.73
  5. Step 5: Solve for x
    x = 2,419,374,421.73/56,513.18
  6. Step 6: Final answer
    x = 42,810.80

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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.