Home / 91,723.96-126,525.43-57,678.55

Finding the Fourth Proportional to 91,723.96, 126,525.43 and 57,678.55

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Solution

The fourth proportional to 91,723.96, 126,525.43 and 57,678.55 is: 79,562.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,723.96 : 126,525.43 = 57,678.55 : x
  2. Step 2: Convert to fraction form
    91,723.96/126,525.43 = 57,678.55/x
  3. Step 3: Cross multiply
    91,723.96x = 126,525.43 × 57,678.55
  4. Step 4: Simplify right side
    91,723.96x = 7,297,803,340.53
  5. Step 5: Solve for x
    x = 7,297,803,340.53/91,723.96
  6. Step 6: Final answer
    x = 79,562.67

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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.