Home / 91,529.80-126,318.90-51,243.04

Finding the Fourth Proportional to 91,529.80, 126,318.90 and 51,243.04

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Solution

The fourth proportional to 91,529.80, 126,318.90 and 51,243.04 is: 70,719.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,529.80 : 126,318.90 = 51,243.04 : x
  2. Step 2: Convert to fraction form
    91,529.80/126,318.90 = 51,243.04/x
  3. Step 3: Cross multiply
    91,529.80x = 126,318.90 × 51,243.04
  4. Step 4: Simplify right side
    91,529.80x = 6,472,964,445.46
  5. Step 5: Solve for x
    x = 6,472,964,445.46/91,529.80
  6. Step 6: Final answer
    x = 70,719.75

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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.