Home / 65,820.64-98,741.21-21,437.07

Finding the Fourth Proportional to 65,820.64, 98,741.21 and 21,437.07

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Solution

The fourth proportional to 65,820.64, 98,741.21 and 21,437.07 is: 32,158.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,820.64 : 98,741.21 = 21,437.07 : x
  2. Step 2: Convert to fraction form
    65,820.64/98,741.21 = 21,437.07/x
  3. Step 3: Cross multiply
    65,820.64x = 98,741.21 × 21,437.07
  4. Step 4: Simplify right side
    65,820.64x = 2,116,722,018.72
  5. Step 5: Solve for x
    x = 2,116,722,018.72/65,820.64
  6. Step 6: Final answer
    x = 32,158.94

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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.