Home / 72,535.08-100,099.72-40,705.92

Finding the Fourth Proportional to 72,535.08, 100,099.72 and 40,705.92

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Solution

The fourth proportional to 72,535.08, 100,099.72 and 40,705.92 is: 56,174.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,535.08 : 100,099.72 = 40,705.92 : x
  2. Step 2: Convert to fraction form
    72,535.08/100,099.72 = 40,705.92/x
  3. Step 3: Cross multiply
    72,535.08x = 100,099.72 × 40,705.92
  4. Step 4: Simplify right side
    72,535.08x = 4,074,651,194.34
  5. Step 5: Solve for x
    x = 4,074,651,194.34/72,535.08
  6. Step 6: Final answer
    x = 56,174.90

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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.