Home / 91,021.74-136,564.65-46,669.38

Finding the Fourth Proportional to 91,021.74, 136,564.65 and 46,669.38

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Solution

The fourth proportional to 91,021.74, 136,564.65 and 46,669.38 is: 70,020.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,021.74 : 136,564.65 = 46,669.38 : x
  2. Step 2: Convert to fraction form
    91,021.74/136,564.65 = 46,669.38/x
  3. Step 3: Cross multiply
    91,021.74x = 136,564.65 × 46,669.38
  4. Step 4: Simplify right side
    91,021.74x = 6,373,387,545.42
  5. Step 5: Solve for x
    x = 6,373,387,545.42/91,021.74
  6. Step 6: Final answer
    x = 70,020.50

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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.