Home / 64,781.49-89,401.23-36,101.19

Finding the Fourth Proportional to 64,781.49, 89,401.23 and 36,101.19

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Solution

The fourth proportional to 64,781.49, 89,401.23 and 36,101.19 is: 49,821.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,781.49 : 89,401.23 = 36,101.19 : x
  2. Step 2: Convert to fraction form
    64,781.49/89,401.23 = 36,101.19/x
  3. Step 3: Cross multiply
    64,781.49x = 89,401.23 × 36,101.19
  4. Step 4: Simplify right side
    64,781.49x = 3,227,490,790.46
  5. Step 5: Solve for x
    x = 3,227,490,790.46/64,781.49
  6. Step 6: Final answer
    x = 49,821.19

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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.