Home / 64,801.67-89,431.49-36,130.61

Finding the Fourth Proportional to 64,801.67, 89,431.49 and 36,130.61

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Solution

The fourth proportional to 64,801.67, 89,431.49 and 36,130.61 is: 49,863.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,801.67 : 89,431.49 = 36,130.61 : x
  2. Step 2: Convert to fraction form
    64,801.67/89,431.49 = 36,130.61/x
  3. Step 3: Cross multiply
    64,801.67x = 89,431.49 × 36,130.61
  4. Step 4: Simplify right side
    64,801.67x = 3,231,214,097.76
  5. Step 5: Solve for x
    x = 3,231,214,097.76/64,801.67
  6. Step 6: Final answer
    x = 49,863.13

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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.