Home / 91,720.62-137,580.96-60,548.58

Finding the Fourth Proportional to 91,720.62, 137,580.96 and 60,548.58

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Solution

The fourth proportional to 91,720.62, 137,580.96 and 60,548.58 is: 90,822.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,720.62 : 137,580.96 = 60,548.58 : x
  2. Step 2: Convert to fraction form
    91,720.62/137,580.96 = 60,548.58/x
  3. Step 3: Cross multiply
    91,720.62x = 137,580.96 × 60,548.58
  4. Step 4: Simplify right side
    91,720.62x = 8,330,331,763.04
  5. Step 5: Solve for x
    x = 8,330,331,763.04/91,720.62
  6. Step 6: Final answer
    x = 90,822.89

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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.