Home / 64,905.35-89,570.57-38,067.21

Finding the Fourth Proportional to 64,905.35, 89,570.57 and 38,067.21

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Solution

The fourth proportional to 64,905.35, 89,570.57 and 38,067.21 is: 52,533.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,905.35 : 89,570.57 = 38,067.21 : x
  2. Step 2: Convert to fraction form
    64,905.35/89,570.57 = 38,067.21/x
  3. Step 3: Cross multiply
    64,905.35x = 89,570.57 × 38,067.21
  4. Step 4: Simplify right side
    64,905.35x = 3,409,701,507.67
  5. Step 5: Solve for x
    x = 3,409,701,507.67/64,905.35
  6. Step 6: Final answer
    x = 52,533.45

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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.