Home / 97,865.80-135,050.28-55,424.64

Finding the Fourth Proportional to 97,865.80, 135,050.28 and 55,424.64

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Solution

The fourth proportional to 97,865.80, 135,050.28 and 55,424.64 is: 76,483.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,865.80 : 135,050.28 = 55,424.64 : x
  2. Step 2: Convert to fraction form
    97,865.80/135,050.28 = 55,424.64/x
  3. Step 3: Cross multiply
    97,865.80x = 135,050.28 × 55,424.64
  4. Step 4: Simplify right side
    97,865.80x = 7,485,113,150.90
  5. Step 5: Solve for x
    x = 7,485,113,150.90/97,865.80
  6. Step 6: Final answer
    x = 76,483.44

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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.