Home / 65,824.40-98,746.20-21,453.20

Finding the Fourth Proportional to 65,824.40, 98,746.20 and 21,453.20

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Solution

The fourth proportional to 65,824.40, 98,746.20 and 21,453.20 is: 32,182.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,824.40 : 98,746.20 = 21,453.20 : x
  2. Step 2: Convert to fraction form
    65,824.40/98,746.20 = 21,453.20/x
  3. Step 3: Cross multiply
    65,824.40x = 98,746.20 × 21,453.20
  4. Step 4: Simplify right side
    65,824.40x = 2,118,421,977.84
  5. Step 5: Solve for x
    x = 2,118,421,977.84/65,824.40
  6. Step 6: Final answer
    x = 32,182.93

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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.