Home / 90,636.76-125,069.70-52,933

Finding the Fourth Proportional to 90,636.76, 125,069.70 and 52,933

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Solution

The fourth proportional to 90,636.76, 125,069.70 and 52,933 is: 73,042.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,636.76 : 125,069.70 = 52,933 : x
  2. Step 2: Convert to fraction form
    90,636.76/125,069.70 = 52,933/x
  3. Step 3: Cross multiply
    90,636.76x = 125,069.70 × 52,933
  4. Step 4: Simplify right side
    90,636.76x = 6,620,314,430.10
  5. Step 5: Solve for x
    x = 6,620,314,430.10/90,636.76
  6. Step 6: Final answer
    x = 73,042.27

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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.