Home / 64,979.16-89,663.10-36,291.96

Finding the Fourth Proportional to 64,979.16, 89,663.10 and 36,291.96

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Solution

The fourth proportional to 64,979.16, 89,663.10 and 36,291.96 is: 50,078.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,979.16 : 89,663.10 = 36,291.96 : x
  2. Step 2: Convert to fraction form
    64,979.16/89,663.10 = 36,291.96/x
  3. Step 3: Cross multiply
    64,979.16x = 89,663.10 × 36,291.96
  4. Step 4: Simplify right side
    64,979.16x = 3,254,049,638.68
  5. Step 5: Solve for x
    x = 3,254,049,638.68/64,979.16
  6. Step 6: Final answer
    x = 50,078.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.