Home / 64,719.81-89,310.47-36,040.95

Finding the Fourth Proportional to 64,719.81, 89,310.47 and 36,040.95

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Solution

The fourth proportional to 64,719.81, 89,310.47 and 36,040.95 is: 49,734.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,719.81 : 89,310.47 = 36,040.95 : x
  2. Step 2: Convert to fraction form
    64,719.81/89,310.47 = 36,040.95/x
  3. Step 3: Cross multiply
    64,719.81x = 89,310.47 × 36,040.95
  4. Step 4: Simplify right side
    64,719.81x = 3,218,834,003.54
  5. Step 5: Solve for x
    x = 3,218,834,003.54/64,719.81
  6. Step 6: Final answer
    x = 49,734.91

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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.