Home / 89,484.31-134,172.60-39,538.90

Finding the Fourth Proportional to 89,484.31, 134,172.60 and 39,538.90

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Solution

The fourth proportional to 89,484.31, 134,172.60 and 39,538.90 is: 59,284.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,484.31 : 134,172.60 = 39,538.90 : x
  2. Step 2: Convert to fraction form
    89,484.31/134,172.60 = 39,538.90/x
  3. Step 3: Cross multiply
    89,484.31x = 134,172.60 × 39,538.90
  4. Step 4: Simplify right side
    89,484.31x = 5,305,037,014.14
  5. Step 5: Solve for x
    x = 5,305,037,014.14/89,484.31
  6. Step 6: Final answer
    x = 59,284.55

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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.