Home / 76,437.20-105,479.82-42,447.85

Finding the Fourth Proportional to 76,437.20, 105,479.82 and 42,447.85

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Solution

The fourth proportional to 76,437.20, 105,479.82 and 42,447.85 is: 58,576.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,437.20 : 105,479.82 = 42,447.85 : x
  2. Step 2: Convert to fraction form
    76,437.20/105,479.82 = 42,447.85/x
  3. Step 3: Cross multiply
    76,437.20x = 105,479.82 × 42,447.85
  4. Step 4: Simplify right side
    76,437.20x = 4,477,391,313.69
  5. Step 5: Solve for x
    x = 4,477,391,313.69/76,437.20
  6. Step 6: Final answer
    x = 58,576.08

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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.