Home / 91,307.49-136,772.60-53,751.84

Finding the Fourth Proportional to 91,307.49, 136,772.60 and 53,751.84

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Solution

The fourth proportional to 91,307.49, 136,772.60 and 53,751.84 is: 80,516.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,307.49 : 136,772.60 = 53,751.84 : x
  2. Step 2: Convert to fraction form
    91,307.49/136,772.60 = 53,751.84/x
  3. Step 3: Cross multiply
    91,307.49x = 136,772.60 × 53,751.84
  4. Step 4: Simplify right side
    91,307.49x = 7,351,778,642.82
  5. Step 5: Solve for x
    x = 7,351,778,642.82/91,307.49
  6. Step 6: Final answer
    x = 80,516.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.