Home / 90,577.04-135,255.62-73,970.01

Finding the Fourth Proportional to 90,577.04, 135,255.62 and 73,970.01

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Solution

The fourth proportional to 90,577.04, 135,255.62 and 73,970.01 is: 110,456.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,577.04 : 135,255.62 = 73,970.01 : x
  2. Step 2: Convert to fraction form
    90,577.04/135,255.62 = 73,970.01/x
  3. Step 3: Cross multiply
    90,577.04x = 135,255.62 × 73,970.01
  4. Step 4: Simplify right side
    90,577.04x = 10,004,859,748.88
  5. Step 5: Solve for x
    x = 10,004,859,748.88/90,577.04
  6. Step 6: Final answer
    x = 110,456.91

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.