Home / 64,424-88,914.84-39,288.08

Finding the Fourth Proportional to 64,424, 88,914.84 and 39,288.08

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Solution

The fourth proportional to 64,424, 88,914.84 and 39,288.08 is: 54,223.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,424 : 88,914.84 = 39,288.08 : x
  2. Step 2: Convert to fraction form
    64,424/88,914.84 = 39,288.08/x
  3. Step 3: Cross multiply
    64,424x = 88,914.84 × 39,288.08
  4. Step 4: Simplify right side
    64,424x = 3,493,293,347.11
  5. Step 5: Solve for x
    x = 3,493,293,347.11/64,424
  6. Step 6: Final answer
    x = 54,223.48

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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.