Home / 80,713.96-111,386.82-47,199.40

Finding the Fourth Proportional to 80,713.96, 111,386.82 and 47,199.40

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Solution

The fourth proportional to 80,713.96, 111,386.82 and 47,199.40 is: 65,136.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,713.96 : 111,386.82 = 47,199.40 : x
  2. Step 2: Convert to fraction form
    80,713.96/111,386.82 = 47,199.40/x
  3. Step 3: Cross multiply
    80,713.96x = 111,386.82 × 47,199.40
  4. Step 4: Simplify right side
    80,713.96x = 5,257,391,071.91
  5. Step 5: Solve for x
    x = 5,257,391,071.91/80,713.96
  6. Step 6: Final answer
    x = 65,136.08

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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.