Home / 89,340.48-134,010.72-69,633.90

Finding the Fourth Proportional to 89,340.48, 134,010.72 and 69,633.90

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Solution

The fourth proportional to 89,340.48, 134,010.72 and 69,633.90 is: 104,450.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,340.48 : 134,010.72 = 69,633.90 : x
  2. Step 2: Convert to fraction form
    89,340.48/134,010.72 = 69,633.90/x
  3. Step 3: Cross multiply
    89,340.48x = 134,010.72 × 69,633.90
  4. Step 4: Simplify right side
    89,340.48x = 9,331,689,075.41
  5. Step 5: Solve for x
    x = 9,331,689,075.41/89,340.48
  6. Step 6: Final answer
    x = 104,450.85

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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.