Home / 76,119.80-105,145.72-58,433.36

Finding the Fourth Proportional to 76,119.80, 105,145.72 and 58,433.36

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Solution

The fourth proportional to 76,119.80, 105,145.72 and 58,433.36 is: 80,715.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,119.80 : 105,145.72 = 58,433.36 : x
  2. Step 2: Convert to fraction form
    76,119.80/105,145.72 = 58,433.36/x
  3. Step 3: Cross multiply
    76,119.80x = 105,145.72 × 58,433.36
  4. Step 4: Simplify right side
    76,119.80x = 6,144,017,709.22
  5. Step 5: Solve for x
    x = 6,144,017,709.22/76,119.80
  6. Step 6: Final answer
    x = 80,715.11

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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.