Home / 97,918.74-135,127.53-55,485.36

Finding the Fourth Proportional to 97,918.74, 135,127.53 and 55,485.36

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Solution

The fourth proportional to 97,918.74, 135,127.53 and 55,485.36 is: 76,569.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,918.74 : 135,127.53 = 55,485.36 : x
  2. Step 2: Convert to fraction form
    97,918.74/135,127.53 = 55,485.36/x
  3. Step 3: Cross multiply
    97,918.74x = 135,127.53 × 55,485.36
  4. Step 4: Simplify right side
    97,918.74x = 7,497,599,647.96
  5. Step 5: Solve for x
    x = 7,497,599,647.96/97,918.74
  6. Step 6: Final answer
    x = 76,569.61

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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.