Home / 74,545.48-102,880.04-55,649.80

Finding the Fourth Proportional to 74,545.48, 102,880.04 and 55,649.80

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Solution

The fourth proportional to 74,545.48, 102,880.04 and 55,649.80 is: 76,802.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,545.48 : 102,880.04 = 55,649.80 : x
  2. Step 2: Convert to fraction form
    74,545.48/102,880.04 = 55,649.80/x
  3. Step 3: Cross multiply
    74,545.48x = 102,880.04 × 55,649.80
  4. Step 4: Simplify right side
    74,545.48x = 5,725,253,649.99
  5. Step 5: Solve for x
    x = 5,725,253,649.99/74,545.48
  6. Step 6: Final answer
    x = 76,802.16

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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.