Home / 65,720.10-98,594.55-21,339.30

Finding the Fourth Proportional to 65,720.10, 98,594.55 and 21,339.30

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Solution

The fourth proportional to 65,720.10, 98,594.55 and 21,339.30 is: 32,013.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,720.10 : 98,594.55 = 21,339.30 : x
  2. Step 2: Convert to fraction form
    65,720.10/98,594.55 = 21,339.30/x
  3. Step 3: Cross multiply
    65,720.10x = 98,594.55 × 21,339.30
  4. Step 4: Simplify right side
    65,720.10x = 2,103,938,680.82
  5. Step 5: Solve for x
    x = 2,103,938,680.82/65,720.10
  6. Step 6: Final answer
    x = 32,013.63

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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.