Home / 89,986.65-134,996.37-45,031.51

Finding the Fourth Proportional to 89,986.65, 134,996.37 and 45,031.51

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Solution

The fourth proportional to 89,986.65, 134,996.37 and 45,031.51 is: 67,555.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,986.65 : 134,996.37 = 45,031.51 : x
  2. Step 2: Convert to fraction form
    89,986.65/134,996.37 = 45,031.51/x
  3. Step 3: Cross multiply
    89,986.65x = 134,996.37 × 45,031.51
  4. Step 4: Simplify right side
    89,986.65x = 6,079,090,385.62
  5. Step 5: Solve for x
    x = 6,079,090,385.62/89,986.65
  6. Step 6: Final answer
    x = 67,555.47

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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.