Home / 70,822.36-97,732.74-38,991.16

Finding the Fourth Proportional to 70,822.36, 97,732.74 and 38,991.16

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Solution

The fourth proportional to 70,822.36, 97,732.74 and 38,991.16 is: 53,806.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,822.36 : 97,732.74 = 38,991.16 : x
  2. Step 2: Convert to fraction form
    70,822.36/97,732.74 = 38,991.16/x
  3. Step 3: Cross multiply
    70,822.36x = 97,732.74 × 38,991.16
  4. Step 4: Simplify right side
    70,822.36x = 3,810,712,902.58
  5. Step 5: Solve for x
    x = 3,810,712,902.58/70,822.36
  6. Step 6: Final answer
    x = 53,806.64

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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.