Home / 64,725.12-89,277.12-39,530.88

Finding the Fourth Proportional to 64,725.12, 89,277.12 and 39,530.88

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Solution

The fourth proportional to 64,725.12, 89,277.12 and 39,530.88 is: 54,526.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,725.12 : 89,277.12 = 39,530.88 : x
  2. Step 2: Convert to fraction form
    64,725.12/89,277.12 = 39,530.88/x
  3. Step 3: Cross multiply
    64,725.12x = 89,277.12 × 39,530.88
  4. Step 4: Simplify right side
    64,725.12x = 3,529,203,117.47
  5. Step 5: Solve for x
    x = 3,529,203,117.47/64,725.12
  6. Step 6: Final answer
    x = 54,526.02

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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.