Home / 77,973.08-116,958.51-18,808.25

Finding the Fourth Proportional to 77,973.08, 116,958.51 and 18,808.25

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Solution

The fourth proportional to 77,973.08, 116,958.51 and 18,808.25 is: 28,212.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,973.08 : 116,958.51 = 18,808.25 : x
  2. Step 2: Convert to fraction form
    77,973.08/116,958.51 = 18,808.25/x
  3. Step 3: Cross multiply
    77,973.08x = 116,958.51 × 18,808.25
  4. Step 4: Simplify right side
    77,973.08x = 2,199,784,310.91
  5. Step 5: Solve for x
    x = 2,199,784,310.91/77,973.08
  6. Step 6: Final answer
    x = 28,212.10

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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.