Home / 72,534.80-100,096.40-40,267.55

Finding the Fourth Proportional to 72,534.80, 100,096.40 and 40,267.55

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Solution

The fourth proportional to 72,534.80, 100,096.40 and 40,267.55 is: 55,568.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,534.80 : 100,096.40 = 40,267.55 : x
  2. Step 2: Convert to fraction form
    72,534.80/100,096.40 = 40,267.55/x
  3. Step 3: Cross multiply
    72,534.80x = 100,096.40 × 40,267.55
  4. Step 4: Simplify right side
    72,534.80x = 4,030,637,142.73
  5. Step 5: Solve for x
    x = 4,030,637,142.73/72,534.80
  6. Step 6: Final answer
    x = 55,568.32

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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.