Home / 52,326.99-78,489.68-12,884.45

Finding the Fourth Proportional to 52,326.99, 78,489.68 and 12,884.45

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Solution

The fourth proportional to 52,326.99, 78,489.68 and 12,884.45 is: 19,326.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,326.99 : 78,489.68 = 12,884.45 : x
  2. Step 2: Convert to fraction form
    52,326.99/78,489.68 = 12,884.45/x
  3. Step 3: Cross multiply
    52,326.99x = 78,489.68 × 12,884.45
  4. Step 4: Simplify right side
    52,326.99x = 1,011,295,900.61
  5. Step 5: Solve for x
    x = 1,011,295,900.61/52,326.99
  6. Step 6: Final answer
    x = 19,326.47

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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.