Home / 51,992.32-77,988.48-12,549.40

Finding the Fourth Proportional to 51,992.32, 77,988.48 and 12,549.40

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Solution

The fourth proportional to 51,992.32, 77,988.48 and 12,549.40 is: 18,824.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,992.32 : 77,988.48 = 12,549.40 : x
  2. Step 2: Convert to fraction form
    51,992.32/77,988.48 = 12,549.40/x
  3. Step 3: Cross multiply
    51,992.32x = 77,988.48 × 12,549.40
  4. Step 4: Simplify right side
    51,992.32x = 978,708,630.91
  5. Step 5: Solve for x
    x = 978,708,630.91/51,992.32
  6. Step 6: Final answer
    x = 18,824.10

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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.