Home / 52,133.76-78,199.56-12,691.08

Finding the Fourth Proportional to 52,133.76, 78,199.56 and 12,691.08

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Solution

The fourth proportional to 52,133.76, 78,199.56 and 12,691.08 is: 19,036.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,133.76 : 78,199.56 = 12,691.08 : x
  2. Step 2: Convert to fraction form
    52,133.76/78,199.56 = 12,691.08/x
  3. Step 3: Cross multiply
    52,133.76x = 78,199.56 × 12,691.08
  4. Step 4: Simplify right side
    52,133.76x = 992,436,871.92
  5. Step 5: Solve for x
    x = 992,436,871.92/52,133.76
  6. Step 6: Final answer
    x = 19,036.36

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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.