Home / 89,869.68-134,771.76-30,689.46

Finding the Fourth Proportional to 89,869.68, 134,771.76 and 30,689.46

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Solution

The fourth proportional to 89,869.68, 134,771.76 and 30,689.46 is: 46,023.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,869.68 : 134,771.76 = 30,689.46 : x
  2. Step 2: Convert to fraction form
    89,869.68/134,771.76 = 30,689.46/x
  3. Step 3: Cross multiply
    89,869.68x = 134,771.76 × 30,689.46
  4. Step 4: Simplify right side
    89,869.68x = 4,136,072,537.65
  5. Step 5: Solve for x
    x = 4,136,072,537.65/89,869.68
  6. Step 6: Final answer
    x = 46,023.00

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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.