Home / 64,998.40-89,701.95-38,131.12

Finding the Fourth Proportional to 64,998.40, 89,701.95 and 38,131.12

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Solution

The fourth proportional to 64,998.40, 89,701.95 and 38,131.12 is: 52,623.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,998.40 : 89,701.95 = 38,131.12 : x
  2. Step 2: Convert to fraction form
    64,998.40/89,701.95 = 38,131.12/x
  3. Step 3: Cross multiply
    64,998.40x = 89,701.95 × 38,131.12
  4. Step 4: Simplify right side
    64,998.40x = 3,420,435,819.68
  5. Step 5: Solve for x
    x = 3,420,435,819.68/64,998.40
  6. Step 6: Final answer
    x = 52,623.38

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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.