Home / 76,821.20-106,094.76-62,518.16

Finding the Fourth Proportional to 76,821.20, 106,094.76 and 62,518.16

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Solution

The fourth proportional to 76,821.20, 106,094.76 and 62,518.16 is: 86,341.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,821.20 : 106,094.76 = 62,518.16 : x
  2. Step 2: Convert to fraction form
    76,821.20/106,094.76 = 62,518.16/x
  3. Step 3: Cross multiply
    76,821.20x = 106,094.76 × 62,518.16
  4. Step 4: Simplify right side
    76,821.20x = 6,632,849,180.84
  5. Step 5: Solve for x
    x = 6,632,849,180.84/76,821.20
  6. Step 6: Final answer
    x = 86,341.39

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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.