Home / 72,133.34-99,548.60-40,304.59

Finding the Fourth Proportional to 72,133.34, 99,548.60 and 40,304.59

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Solution

The fourth proportional to 72,133.34, 99,548.60 and 40,304.59 is: 55,622.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,133.34 : 99,548.60 = 40,304.59 : x
  2. Step 2: Convert to fraction form
    72,133.34/99,548.60 = 40,304.59/x
  3. Step 3: Cross multiply
    72,133.34x = 99,548.60 × 40,304.59
  4. Step 4: Simplify right side
    72,133.34x = 4,012,265,057.68
  5. Step 5: Solve for x
    x = 4,012,265,057.68/72,133.34
  6. Step 6: Final answer
    x = 55,622.90

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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.