Home / 64,979.80-97,502.10-36,921.40

Finding the Fourth Proportional to 64,979.80, 97,502.10 and 36,921.40

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Solution

The fourth proportional to 64,979.80, 97,502.10 and 36,921.40 is: 55,400.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,979.80 : 97,502.10 = 36,921.40 : x
  2. Step 2: Convert to fraction form
    64,979.80/97,502.10 = 36,921.40/x
  3. Step 3: Cross multiply
    64,979.80x = 97,502.10 × 36,921.40
  4. Step 4: Simplify right side
    64,979.80x = 3,599,914,034.94
  5. Step 5: Solve for x
    x = 3,599,914,034.94/64,979.80
  6. Step 6: Final answer
    x = 55,400.51

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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.