Home / 91,712.46-126,509.42-57,666.98

Finding the Fourth Proportional to 91,712.46, 126,509.42 and 57,666.98

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Solution

The fourth proportional to 91,712.46, 126,509.42 and 57,666.98 is: 79,546.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,712.46 : 126,509.42 = 57,666.98 : x
  2. Step 2: Convert to fraction form
    91,712.46/126,509.42 = 57,666.98/x
  3. Step 3: Cross multiply
    91,712.46x = 126,509.42 × 57,666.98
  4. Step 4: Simplify right side
    91,712.46x = 7,295,416,192.95
  5. Step 5: Solve for x
    x = 7,295,416,192.95/91,712.46
  6. Step 6: Final answer
    x = 79,546.62

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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.