Home / 70,564.32-97,380.36-38,735.28

Finding the Fourth Proportional to 70,564.32, 97,380.36 and 38,735.28

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Solution

The fourth proportional to 70,564.32, 97,380.36 and 38,735.28 is: 53,455.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,564.32 : 97,380.36 = 38,735.28 : x
  2. Step 2: Convert to fraction form
    70,564.32/97,380.36 = 38,735.28/x
  3. Step 3: Cross multiply
    70,564.32x = 97,380.36 × 38,735.28
  4. Step 4: Simplify right side
    70,564.32x = 3,772,055,511.10
  5. Step 5: Solve for x
    x = 3,772,055,511.10/70,564.32
  6. Step 6: Final answer
    x = 53,455.56

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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.