Home / 64,782.18-89,398.19-36,101.21

Finding the Fourth Proportional to 64,782.18, 89,398.19 and 36,101.21

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Solution

The fourth proportional to 64,782.18, 89,398.19 and 36,101.21 is: 49,818.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,782.18 : 89,398.19 = 36,101.21 : x
  2. Step 2: Convert to fraction form
    64,782.18/89,398.19 = 36,101.21/x
  3. Step 3: Cross multiply
    64,782.18x = 89,398.19 × 36,101.21
  4. Step 4: Simplify right side
    64,782.18x = 3,227,383,027.70
  5. Step 5: Solve for x
    x = 3,227,383,027.70/64,782.18
  6. Step 6: Final answer
    x = 49,818.99

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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.