Home / 77,821.02-107,346.47-49,089.92

Finding the Fourth Proportional to 77,821.02, 107,346.47 and 49,089.92

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Solution

The fourth proportional to 77,821.02, 107,346.47 and 49,089.92 is: 67,714.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,821.02 : 107,346.47 = 49,089.92 : x
  2. Step 2: Convert to fraction form
    77,821.02/107,346.47 = 49,089.92/x
  3. Step 3: Cross multiply
    77,821.02x = 107,346.47 × 49,089.92
  4. Step 4: Simplify right side
    77,821.02x = 5,269,628,842.40
  5. Step 5: Solve for x
    x = 5,269,628,842.40/77,821.02
  6. Step 6: Final answer
    x = 67,714.72

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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.