Home / 65,440.16-98,175.92-21,071.08

Finding the Fourth Proportional to 65,440.16, 98,175.92 and 21,071.08

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Solution

The fourth proportional to 65,440.16, 98,175.92 and 21,071.08 is: 31,611.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,440.16 : 98,175.92 = 21,071.08 : x
  2. Step 2: Convert to fraction form
    65,440.16/98,175.92 = 21,071.08/x
  3. Step 3: Cross multiply
    65,440.16x = 98,175.92 × 21,071.08
  4. Step 4: Simplify right side
    65,440.16x = 2,068,672,664.39
  5. Step 5: Solve for x
    x = 2,068,672,664.39/65,440.16
  6. Step 6: Final answer
    x = 31,611.67

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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.