Home / 65,077.12-97,643.66-20,707.48

Finding the Fourth Proportional to 65,077.12, 97,643.66 and 20,707.48

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Solution

The fourth proportional to 65,077.12, 97,643.66 and 20,707.48 is: 31,070.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,077.12 : 97,643.66 = 20,707.48 : x
  2. Step 2: Convert to fraction form
    65,077.12/97,643.66 = 20,707.48/x
  3. Step 3: Cross multiply
    65,077.12x = 97,643.66 × 20,707.48
  4. Step 4: Simplify right side
    65,077.12x = 2,021,954,136.58
  5. Step 5: Solve for x
    x = 2,021,954,136.58/65,077.12
  6. Step 6: Final answer
    x = 31,070.12

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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.