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Finding the Fourth Proportional to 64,681.82, 89,260.77 and 36,387.51

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Solution

The fourth proportional to 64,681.82, 89,260.77 and 36,387.51 is: 50,214.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,681.82 : 89,260.77 = 36,387.51 : x
  2. Step 2: Convert to fraction form
    64,681.82/89,260.77 = 36,387.51/x
  3. Step 3: Cross multiply
    64,681.82x = 89,260.77 × 36,387.51
  4. Step 4: Simplify right side
    64,681.82x = 3,247,976,805.65
  5. Step 5: Solve for x
    x = 3,247,976,805.65/64,681.82
  6. Step 6: Final answer
    x = 50,214.68

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1.5x scale

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.