Home / 56,065.18-77,370-30,914.68

Finding the Fourth Proportional to 56,065.18, 77,370 and 30,914.68

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Solution

The fourth proportional to 56,065.18, 77,370 and 30,914.68 is: 42,662.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,065.18 : 77,370 = 30,914.68 : x
  2. Step 2: Convert to fraction form
    56,065.18/77,370 = 30,914.68/x
  3. Step 3: Cross multiply
    56,065.18x = 77,370 × 30,914.68
  4. Step 4: Simplify right side
    56,065.18x = 2,391,868,791.60
  5. Step 5: Solve for x
    x = 2,391,868,791.60/56,065.18
  6. Step 6: Final answer
    x = 42,662.29

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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.