Home / 65,631.60-98,454.24-21,256.56

Finding the Fourth Proportional to 65,631.60, 98,454.24 and 21,256.56

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Solution

The fourth proportional to 65,631.60, 98,454.24 and 21,256.56 is: 31,887.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,631.60 : 98,454.24 = 21,256.56 : x
  2. Step 2: Convert to fraction form
    65,631.60/98,454.24 = 21,256.56/x
  3. Step 3: Cross multiply
    65,631.60x = 98,454.24 × 21,256.56
  4. Step 4: Simplify right side
    65,631.60x = 2,092,798,459.81
  5. Step 5: Solve for x
    x = 2,092,798,459.81/65,631.60
  6. Step 6: Final answer
    x = 31,887.06

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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.