Home / 70,814.82-97,727.28-38,986.68

Finding the Fourth Proportional to 70,814.82, 97,727.28 and 38,986.68

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Solution

The fourth proportional to 70,814.82, 97,727.28 and 38,986.68 is: 53,803.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,814.82 : 97,727.28 = 38,986.68 : x
  2. Step 2: Convert to fraction form
    70,814.82/97,727.28 = 38,986.68/x
  3. Step 3: Cross multiply
    70,814.82x = 97,727.28 × 38,986.68
  4. Step 4: Simplify right side
    70,814.82x = 3,810,062,192.63
  5. Step 5: Solve for x
    x = 3,810,062,192.63/70,814.82
  6. Step 6: Final answer
    x = 53,803.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.