Home / 52,809.16-79,016.88-52,218.64

Finding the Fourth Proportional to 52,809.16, 79,016.88 and 52,218.64

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Solution

The fourth proportional to 52,809.16, 79,016.88 and 52,218.64 is: 78,133.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,809.16 : 79,016.88 = 52,218.64 : x
  2. Step 2: Convert to fraction form
    52,809.16/79,016.88 = 52,218.64/x
  3. Step 3: Cross multiply
    52,809.16x = 79,016.88 × 52,218.64
  4. Step 4: Simplify right side
    52,809.16x = 4,126,154,010.64
  5. Step 5: Solve for x
    x = 4,126,154,010.64/52,809.16
  6. Step 6: Final answer
    x = 78,133.30

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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.