Home / 93,731.10-129,347.19-51,288.78

Finding the Fourth Proportional to 93,731.10, 129,347.19 and 51,288.78

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Solution

The fourth proportional to 93,731.10, 129,347.19 and 51,288.78 is: 70,777.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,731.10 : 129,347.19 = 51,288.78 : x
  2. Step 2: Convert to fraction form
    93,731.10/129,347.19 = 51,288.78/x
  3. Step 3: Cross multiply
    93,731.10x = 129,347.19 × 51,288.78
  4. Step 4: Simplify right side
    93,731.10x = 6,634,059,571.53
  5. Step 5: Solve for x
    x = 6,634,059,571.53/93,731.10
  6. Step 6: Final answer
    x = 70,777.57

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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.