Home / 72,674.08-100,293.21-40,842.91

Finding the Fourth Proportional to 72,674.08, 100,293.21 and 40,842.91

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Solution

The fourth proportional to 72,674.08, 100,293.21 and 40,842.91 is: 56,364.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,674.08 : 100,293.21 = 40,842.91 : x
  2. Step 2: Convert to fraction form
    72,674.08/100,293.21 = 40,842.91/x
  3. Step 3: Cross multiply
    72,674.08x = 100,293.21 × 40,842.91
  4. Step 4: Simplify right side
    72,674.08x = 4,096,266,549.64
  5. Step 5: Solve for x
    x = 4,096,266,549.64/72,674.08
  6. Step 6: Final answer
    x = 56,364.89

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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.