Home / 64,587.09-89,131.44-35,909.15

Finding the Fourth Proportional to 64,587.09, 89,131.44 and 35,909.15

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Solution

The fourth proportional to 64,587.09, 89,131.44 and 35,909.15 is: 49,555.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,587.09 : 89,131.44 = 35,909.15 : x
  2. Step 2: Convert to fraction form
    64,587.09/89,131.44 = 35,909.15/x
  3. Step 3: Cross multiply
    64,587.09x = 89,131.44 × 35,909.15
  4. Step 4: Simplify right side
    64,587.09x = 3,200,633,803.02
  5. Step 5: Solve for x
    x = 3,200,633,803.02/64,587.09
  6. Step 6: Final answer
    x = 49,555.32

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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.