Home / 65,456.16-98,181.84-21,085.28

Finding the Fourth Proportional to 65,456.16, 98,181.84 and 21,085.28

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Solution

The fourth proportional to 65,456.16, 98,181.84 and 21,085.28 is: 31,627.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,456.16 : 98,181.84 = 21,085.28 : x
  2. Step 2: Convert to fraction form
    65,456.16/98,181.84 = 21,085.28/x
  3. Step 3: Cross multiply
    65,456.16x = 98,181.84 × 21,085.28
  4. Step 4: Simplify right side
    65,456.16x = 2,070,191,587.32
  5. Step 5: Solve for x
    x = 2,070,191,587.32/65,456.16
  6. Step 6: Final answer
    x = 31,627.15

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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.