Home / 91,762.20-137,643.30-60,370.65

Finding the Fourth Proportional to 91,762.20, 137,643.30 and 60,370.65

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Solution

The fourth proportional to 91,762.20, 137,643.30 and 60,370.65 is: 90,555.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,762.20 : 137,643.30 = 60,370.65 : x
  2. Step 2: Convert to fraction form
    91,762.20/137,643.30 = 60,370.65/x
  3. Step 3: Cross multiply
    91,762.20x = 137,643.30 × 60,370.65
  4. Step 4: Simplify right side
    91,762.20x = 8,309,615,489.15
  5. Step 5: Solve for x
    x = 8,309,615,489.15/91,762.20
  6. Step 6: Final answer
    x = 90,555.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.