Home / 65,710.32-98,579.28-21,333.60

Finding the Fourth Proportional to 65,710.32, 98,579.28 and 21,333.60

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Solution

The fourth proportional to 65,710.32, 98,579.28 and 21,333.60 is: 32,004.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,710.32 : 98,579.28 = 21,333.60 : x
  2. Step 2: Convert to fraction form
    65,710.32/98,579.28 = 21,333.60/x
  3. Step 3: Cross multiply
    65,710.32x = 98,579.28 × 21,333.60
  4. Step 4: Simplify right side
    65,710.32x = 2,103,050,927.81
  5. Step 5: Solve for x
    x = 2,103,050,927.81/65,710.32
  6. Step 6: Final answer
    x = 32,004.88

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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.