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Finding the Fourth Proportional to 63,070, 87,036.60 and 34,776.28

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Solution

The fourth proportional to 63,070, 87,036.60 and 34,776.28 is: 47,991.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,070 : 87,036.60 = 34,776.28 : x
  2. Step 2: Convert to fraction form
    63,070/87,036.60 = 34,776.28/x
  3. Step 3: Cross multiply
    63,070x = 87,036.60 × 34,776.28
  4. Step 4: Simplify right side
    63,070x = 3,026,809,171.85
  5. Step 5: Solve for x
    x = 3,026,809,171.85/63,070
  6. Step 6: Final answer
    x = 47,991.27

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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.