Home / 71,928.51-99,261.38-40,096.74

Finding the Fourth Proportional to 71,928.51, 99,261.38 and 40,096.74

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Solution

The fourth proportional to 71,928.51, 99,261.38 and 40,096.74 is: 55,333.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,928.51 : 99,261.38 = 40,096.74 : x
  2. Step 2: Convert to fraction form
    71,928.51/99,261.38 = 40,096.74/x
  3. Step 3: Cross multiply
    71,928.51x = 99,261.38 × 40,096.74
  4. Step 4: Simplify right side
    71,928.51x = 3,980,057,545.42
  5. Step 5: Solve for x
    x = 3,980,057,545.42/71,928.51
  6. Step 6: Final answer
    x = 55,333.52

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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.