Home / 72,528.46-100,089.01-40,697.28

Finding the Fourth Proportional to 72,528.46, 100,089.01 and 40,697.28

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Solution

The fourth proportional to 72,528.46, 100,089.01 and 40,697.28 is: 56,162.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,528.46 : 100,089.01 = 40,697.28 : x
  2. Step 2: Convert to fraction form
    72,528.46/100,089.01 = 40,697.28/x
  3. Step 3: Cross multiply
    72,528.46x = 100,089.01 × 40,697.28
  4. Step 4: Simplify right side
    72,528.46x = 4,073,350,613.37
  5. Step 5: Solve for x
    x = 4,073,350,613.37/72,528.46
  6. Step 6: Final answer
    x = 56,162.10

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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.