Home / 51,279.12-70,772.16-30,066.84

Finding the Fourth Proportional to 51,279.12, 70,772.16 and 30,066.84

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Solution

The fourth proportional to 51,279.12, 70,772.16 and 30,066.84 is: 41,496.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,279.12 : 70,772.16 = 30,066.84 : x
  2. Step 2: Convert to fraction form
    51,279.12/70,772.16 = 30,066.84/x
  3. Step 3: Cross multiply
    51,279.12x = 70,772.16 × 30,066.84
  4. Step 4: Simplify right side
    51,279.12x = 2,127,895,211.17
  5. Step 5: Solve for x
    x = 2,127,895,211.17/51,279.12
  6. Step 6: Final answer
    x = 41,496.33

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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.