Home / 65,627.36-98,356.80-57,159.20

Finding the Fourth Proportional to 65,627.36, 98,356.80 and 57,159.20

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Solution

The fourth proportional to 65,627.36, 98,356.80 and 57,159.20 is: 85,665.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,627.36 : 98,356.80 = 57,159.20 : x
  2. Step 2: Convert to fraction form
    65,627.36/98,356.80 = 57,159.20/x
  3. Step 3: Cross multiply
    65,627.36x = 98,356.80 × 57,159.20
  4. Step 4: Simplify right side
    65,627.36x = 5,621,996,002.56
  5. Step 5: Solve for x
    x = 5,621,996,002.56/65,627.36
  6. Step 6: Final answer
    x = 85,665.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.