Home / 64,823.09-89,455.59-36,142.40

Finding the Fourth Proportional to 64,823.09, 89,455.59 and 36,142.40

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Solution

The fourth proportional to 64,823.09, 89,455.59 and 36,142.40 is: 49,876.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,823.09 : 89,455.59 = 36,142.40 : x
  2. Step 2: Convert to fraction form
    64,823.09/89,455.59 = 36,142.40/x
  3. Step 3: Cross multiply
    64,823.09x = 89,455.59 × 36,142.40
  4. Step 4: Simplify right side
    64,823.09x = 3,233,139,939.65
  5. Step 5: Solve for x
    x = 3,233,139,939.65/64,823.09
  6. Step 6: Final answer
    x = 49,876.37

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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.