Home / 77,259.02-106,608.64-43,262.78

Finding the Fourth Proportional to 77,259.02, 106,608.64 and 43,262.78

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Solution

The fourth proportional to 77,259.02, 106,608.64 and 43,262.78 is: 59,697.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,259.02 : 106,608.64 = 43,262.78 : x
  2. Step 2: Convert to fraction form
    77,259.02/106,608.64 = 43,262.78/x
  3. Step 3: Cross multiply
    77,259.02x = 106,608.64 × 43,262.78
  4. Step 4: Simplify right side
    77,259.02x = 4,612,186,138.42
  5. Step 5: Solve for x
    x = 4,612,186,138.42/77,259.02
  6. Step 6: Final answer
    x = 59,697.70

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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.