Home / 99,750.50-137,658.57-55,041.38

Finding the Fourth Proportional to 99,750.50, 137,658.57 and 55,041.38

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Solution

The fourth proportional to 99,750.50, 137,658.57 and 55,041.38 is: 75,958.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,750.50 : 137,658.57 = 55,041.38 : x
  2. Step 2: Convert to fraction form
    99,750.50/137,658.57 = 55,041.38/x
  3. Step 3: Cross multiply
    99,750.50x = 137,658.57 × 55,041.38
  4. Step 4: Simplify right side
    99,750.50x = 7,576,917,661.63
  5. Step 5: Solve for x
    x = 7,576,917,661.63/99,750.50
  6. Step 6: Final answer
    x = 75,958.69

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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.