Home / 56,068.12-77,372.58-30,916

Finding the Fourth Proportional to 56,068.12, 77,372.58 and 30,916

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Solution

The fourth proportional to 56,068.12, 77,372.58 and 30,916 is: 42,663.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,068.12 : 77,372.58 = 30,916 : x
  2. Step 2: Convert to fraction form
    56,068.12/77,372.58 = 30,916/x
  3. Step 3: Cross multiply
    56,068.12x = 77,372.58 × 30,916
  4. Step 4: Simplify right side
    56,068.12x = 2,392,050,683.28
  5. Step 5: Solve for x
    x = 2,392,050,683.28/56,068.12
  6. Step 6: Final answer
    x = 42,663.29

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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.