Home / 69,884.16-96,416.16-39,667.20

Finding the Fourth Proportional to 69,884.16, 96,416.16 and 39,667.20

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Solution

The fourth proportional to 69,884.16, 96,416.16 and 39,667.20 is: 54,727.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,884.16 : 96,416.16 = 39,667.20 : x
  2. Step 2: Convert to fraction form
    69,884.16/96,416.16 = 39,667.20/x
  3. Step 3: Cross multiply
    69,884.16x = 96,416.16 × 39,667.20
  4. Step 4: Simplify right side
    69,884.16x = 3,824,559,101.95
  5. Step 5: Solve for x
    x = 3,824,559,101.95/69,884.16
  6. Step 6: Final answer
    x = 54,727.12

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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.