Home / 74,580.75-102,721.77-64,509.62

Finding the Fourth Proportional to 74,580.75, 102,721.77 and 64,509.62

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Solution

The fourth proportional to 74,580.75, 102,721.77 and 64,509.62 is: 88,850.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,580.75 : 102,721.77 = 64,509.62 : x
  2. Step 2: Convert to fraction form
    74,580.75/102,721.77 = 64,509.62/x
  3. Step 3: Cross multiply
    74,580.75x = 102,721.77 × 64,509.62
  4. Step 4: Simplify right side
    74,580.75x = 6,626,541,834.82
  5. Step 5: Solve for x
    x = 6,626,541,834.82/74,580.75
  6. Step 6: Final answer
    x = 88,850.57

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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.