Home / 78,192.48-117,262.16-25,588.88

Finding the Fourth Proportional to 78,192.48, 117,262.16 and 25,588.88

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Solution

The fourth proportional to 78,192.48, 117,262.16 and 25,588.88 is: 38,374.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,192.48 : 117,262.16 = 25,588.88 : x
  2. Step 2: Convert to fraction form
    78,192.48/117,262.16 = 25,588.88/x
  3. Step 3: Cross multiply
    78,192.48x = 117,262.16 × 25,588.88
  4. Step 4: Simplify right side
    78,192.48x = 3,000,607,340.78
  5. Step 5: Solve for x
    x = 3,000,607,340.78/78,192.48
  6. Step 6: Final answer
    x = 38,374.63

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1.5x scale

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.