Home / 76,038.88-104,931.60-42,511.36

Finding the Fourth Proportional to 76,038.88, 104,931.60 and 42,511.36

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Solution

The fourth proportional to 76,038.88, 104,931.60 and 42,511.36 is: 58,664.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,038.88 : 104,931.60 = 42,511.36 : x
  2. Step 2: Convert to fraction form
    76,038.88/104,931.60 = 42,511.36/x
  3. Step 3: Cross multiply
    76,038.88x = 104,931.60 × 42,511.36
  4. Step 4: Simplify right side
    76,038.88x = 4,460,785,022.98
  5. Step 5: Solve for x
    x = 4,460,785,022.98/76,038.88
  6. Step 6: Final answer
    x = 58,664.53

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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.