Home / 89,781.48-134,670.87-30,658.50

Finding the Fourth Proportional to 89,781.48, 134,670.87 and 30,658.50

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Solution

The fourth proportional to 89,781.48, 134,670.87 and 30,658.50 is: 45,987.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,781.48 : 134,670.87 = 30,658.50 : x
  2. Step 2: Convert to fraction form
    89,781.48/134,670.87 = 30,658.50/x
  3. Step 3: Cross multiply
    89,781.48x = 134,670.87 × 30,658.50
  4. Step 4: Simplify right side
    89,781.48x = 4,128,806,867.90
  5. Step 5: Solve for x
    x = 4,128,806,867.90/89,781.48
  6. Step 6: Final answer
    x = 45,987.29

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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.