Home / 79,961.90-119,646.86-64,118.48

Finding the Fourth Proportional to 79,961.90, 119,646.86 and 64,118.48

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Solution

The fourth proportional to 79,961.90, 119,646.86 and 64,118.48 is: 95,940.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,961.90 : 119,646.86 = 64,118.48 : x
  2. Step 2: Convert to fraction form
    79,961.90/119,646.86 = 64,118.48/x
  3. Step 3: Cross multiply
    79,961.90x = 119,646.86 × 64,118.48
  4. Step 4: Simplify right side
    79,961.90x = 7,671,573,881.15
  5. Step 5: Solve for x
    x = 7,671,573,881.15/79,961.90
  6. Step 6: Final answer
    x = 95,940.37

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.