Home / 78,984.48-118,463.90-26,393.88

Finding the Fourth Proportional to 78,984.48, 118,463.90 and 26,393.88

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Solution

The fourth proportional to 78,984.48, 118,463.90 and 26,393.88 is: 39,586.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,984.48 : 118,463.90 = 26,393.88 : x
  2. Step 2: Convert to fraction form
    78,984.48/118,463.90 = 26,393.88/x
  3. Step 3: Cross multiply
    78,984.48x = 118,463.90 × 26,393.88
  4. Step 4: Simplify right side
    78,984.48x = 3,126,721,828.96
  5. Step 5: Solve for x
    x = 3,126,721,828.96/78,984.48
  6. Step 6: Final answer
    x = 39,586.53

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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.