Home / 85,760.46-118,309.58-55,555.97

Finding the Fourth Proportional to 85,760.46, 118,309.58 and 55,555.97

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Solution

The fourth proportional to 85,760.46, 118,309.58 and 55,555.97 is: 76,641.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,760.46 : 118,309.58 = 55,555.97 : x
  2. Step 2: Convert to fraction form
    85,760.46/118,309.58 = 55,555.97/x
  3. Step 3: Cross multiply
    85,760.46x = 118,309.58 × 55,555.97
  4. Step 4: Simplify right side
    85,760.46x = 6,572,803,477.19
  5. Step 5: Solve for x
    x = 6,572,803,477.19/85,760.46
  6. Step 6: Final answer
    x = 76,641.42

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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.