Home / 92,089.79-138,187.64-38,777.56

Finding the Fourth Proportional to 92,089.79, 138,187.64 and 38,777.56

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Solution

The fourth proportional to 92,089.79, 138,187.64 and 38,777.56 is: 58,188.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,089.79 : 138,187.64 = 38,777.56 : x
  2. Step 2: Convert to fraction form
    92,089.79/138,187.64 = 38,777.56/x
  3. Step 3: Cross multiply
    92,089.79x = 138,187.64 × 38,777.56
  4. Step 4: Simplify right side
    92,089.79x = 5,358,579,812.01
  5. Step 5: Solve for x
    x = 5,358,579,812.01/92,089.79
  6. Step 6: Final answer
    x = 58,188.64

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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.