Home / 88,021.08-121,310.46-64,109.88

Finding the Fourth Proportional to 88,021.08, 121,310.46 and 64,109.88

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Solution

The fourth proportional to 88,021.08, 121,310.46 and 64,109.88 is: 88,356.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,021.08 : 121,310.46 = 64,109.88 : x
  2. Step 2: Convert to fraction form
    88,021.08/121,310.46 = 64,109.88/x
  3. Step 3: Cross multiply
    88,021.08x = 121,310.46 × 64,109.88
  4. Step 4: Simplify right side
    88,021.08x = 7,777,199,033.34
  5. Step 5: Solve for x
    x = 7,777,199,033.34/88,021.08
  6. Step 6: Final answer
    x = 88,356.10

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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.