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Finding the Fourth Proportional to 64,718.26, 89,308.78 and 36,038.94

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Solution

The fourth proportional to 64,718.26, 89,308.78 and 36,038.94 is: 49,732.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,718.26 : 89,308.78 = 36,038.94 : x
  2. Step 2: Convert to fraction form
    64,718.26/89,308.78 = 36,038.94/x
  3. Step 3: Cross multiply
    64,718.26x = 89,308.78 × 36,038.94
  4. Step 4: Simplify right side
    64,718.26x = 3,218,593,841.25
  5. Step 5: Solve for x
    x = 3,218,593,841.25/64,718.26
  6. Step 6: Final answer
    x = 49,732.39

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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.