Home / 64,645.35-89,221.19-37,782.62

Finding the Fourth Proportional to 64,645.35, 89,221.19 and 37,782.62

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Solution

The fourth proportional to 64,645.35, 89,221.19 and 37,782.62 is: 52,146.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,645.35 : 89,221.19 = 37,782.62 : x
  2. Step 2: Convert to fraction form
    64,645.35/89,221.19 = 37,782.62/x
  3. Step 3: Cross multiply
    64,645.35x = 89,221.19 × 37,782.62
  4. Step 4: Simplify right side
    64,645.35x = 3,371,009,682.70
  5. Step 5: Solve for x
    x = 3,371,009,682.70/64,645.35
  6. Step 6: Final answer
    x = 52,146.21

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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.