Home / 89,966.40-134,869.44-45,570.30

Finding the Fourth Proportional to 89,966.40, 134,869.44 and 45,570.30

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Solution

The fourth proportional to 89,966.40, 134,869.44 and 45,570.30 is: 68,314.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,966.40 : 134,869.44 = 45,570.30 : x
  2. Step 2: Convert to fraction form
    89,966.40/134,869.44 = 45,570.30/x
  3. Step 3: Cross multiply
    89,966.40x = 134,869.44 × 45,570.30
  4. Step 4: Simplify right side
    89,966.40x = 6,146,040,841.63
  5. Step 5: Solve for x
    x = 6,146,040,841.63/89,966.40
  6. Step 6: Final answer
    x = 68,314.85

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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.