Home / 97,889.15-135,087.02-55,447.69

Finding the Fourth Proportional to 97,889.15, 135,087.02 and 55,447.69

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Solution

The fourth proportional to 97,889.15, 135,087.02 and 55,447.69 is: 76,517.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,889.15 : 135,087.02 = 55,447.69 : x
  2. Step 2: Convert to fraction form
    97,889.15/135,087.02 = 55,447.69/x
  3. Step 3: Cross multiply
    97,889.15x = 135,087.02 × 55,447.69
  4. Step 4: Simplify right side
    97,889.15x = 7,490,262,532.55
  5. Step 5: Solve for x
    x = 7,490,262,532.55/97,889.15
  6. Step 6: Final answer
    x = 76,517.80

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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.