Home / 55,845.78-77,068.56-30,695.28

Finding the Fourth Proportional to 55,845.78, 77,068.56 and 30,695.28

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Solution

The fourth proportional to 55,845.78, 77,068.56 and 30,695.28 is: 42,360.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,845.78 : 77,068.56 = 30,695.28 : x
  2. Step 2: Convert to fraction form
    55,845.78/77,068.56 = 30,695.28/x
  3. Step 3: Cross multiply
    55,845.78x = 77,068.56 × 30,695.28
  4. Step 4: Simplify right side
    55,845.78x = 2,365,641,028.40
  5. Step 5: Solve for x
    x = 2,365,641,028.40/55,845.78
  6. Step 6: Final answer
    x = 42,360.25

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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.