Home / 42,725.58-64,095.66-13,142.76

Finding the Fourth Proportional to 42,725.58, 64,095.66 and 13,142.76

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Solution

The fourth proportional to 42,725.58, 64,095.66 and 13,142.76 is: 19,716.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,725.58 : 64,095.66 = 13,142.76 : x
  2. Step 2: Convert to fraction form
    42,725.58/64,095.66 = 13,142.76/x
  3. Step 3: Cross multiply
    42,725.58x = 64,095.66 × 13,142.76
  4. Step 4: Simplify right side
    42,725.58x = 842,393,876.42
  5. Step 5: Solve for x
    x = 842,393,876.42/42,725.58
  6. Step 6: Final answer
    x = 19,716.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.