Home / 64,712.09-89,315.07-39,232.35

Finding the Fourth Proportional to 64,712.09, 89,315.07 and 39,232.35

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Solution

The fourth proportional to 64,712.09, 89,315.07 and 39,232.35 is: 54,148.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,712.09 : 89,315.07 = 39,232.35 : x
  2. Step 2: Convert to fraction form
    64,712.09/89,315.07 = 39,232.35/x
  3. Step 3: Cross multiply
    64,712.09x = 89,315.07 × 39,232.35
  4. Step 4: Simplify right side
    64,712.09x = 3,504,039,756.87
  5. Step 5: Solve for x
    x = 3,504,039,756.87/64,712.09
  6. Step 6: Final answer
    x = 54,148.15

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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.