Home / 65,451.64-98,181.06-21,075.16

Finding the Fourth Proportional to 65,451.64, 98,181.06 and 21,075.16

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Solution

The fourth proportional to 65,451.64, 98,181.06 and 21,075.16 is: 31,613.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,451.64 : 98,181.06 = 21,075.16 : x
  2. Step 2: Convert to fraction form
    65,451.64/98,181.06 = 21,075.16/x
  3. Step 3: Cross multiply
    65,451.64x = 98,181.06 × 21,075.16
  4. Step 4: Simplify right side
    65,451.64x = 2,069,181,548.47
  5. Step 5: Solve for x
    x = 2,069,181,548.47/65,451.64
  6. Step 6: Final answer
    x = 31,613.90

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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.