Home / 97,829.40-135,005.07-55,396.20

Finding the Fourth Proportional to 97,829.40, 135,005.07 and 55,396.20

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Solution

The fourth proportional to 97,829.40, 135,005.07 and 55,396.20 is: 76,447.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,829.40 : 135,005.07 = 55,396.20 : x
  2. Step 2: Convert to fraction form
    97,829.40/135,005.07 = 55,396.20/x
  3. Step 3: Cross multiply
    97,829.40x = 135,005.07 × 55,396.20
  4. Step 4: Simplify right side
    97,829.40x = 7,478,767,858.73
  5. Step 5: Solve for x
    x = 7,478,767,858.73/97,829.40
  6. Step 6: Final answer
    x = 76,447.04

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1.5x scale

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.