Home / 64,776.45-89,389.40-39,625.95

Finding the Fourth Proportional to 64,776.45, 89,389.40 and 39,625.95

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Solution

The fourth proportional to 64,776.45, 89,389.40 and 39,625.95 is: 54,682.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,776.45 : 89,389.40 = 39,625.95 : x
  2. Step 2: Convert to fraction form
    64,776.45/89,389.40 = 39,625.95/x
  3. Step 3: Cross multiply
    64,776.45x = 89,389.40 × 39,625.95
  4. Step 4: Simplify right side
    64,776.45x = 3,542,139,696.80
  5. Step 5: Solve for x
    x = 3,542,139,696.80/64,776.45
  6. Step 6: Final answer
    x = 54,682.52

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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.