Home / 77,314.47-106,693.98-47,099.78

Finding the Fourth Proportional to 77,314.47, 106,693.98 and 47,099.78

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Solution

The fourth proportional to 77,314.47, 106,693.98 and 47,099.78 is: 64,997.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,314.47 : 106,693.98 = 47,099.78 : x
  2. Step 2: Convert to fraction form
    77,314.47/106,693.98 = 47,099.78/x
  3. Step 3: Cross multiply
    77,314.47x = 106,693.98 × 47,099.78
  4. Step 4: Simplify right side
    77,314.47x = 5,025,263,252.06
  5. Step 5: Solve for x
    x = 5,025,263,252.06/77,314.47
  6. Step 6: Final answer
    x = 64,997.71

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1.5x scale

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.