Home / 72,030.14-99,408.49-40,202.00

Finding the Fourth Proportional to 72,030.14, 99,408.49 and 40,202.00

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Solution

The fourth proportional to 72,030.14, 99,408.49 and 40,202.00 is: 55,482.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,030.14 : 99,408.49 = 40,202.00 : x
  2. Step 2: Convert to fraction form
    72,030.14/99,408.49 = 40,202.00/x
  3. Step 3: Cross multiply
    72,030.14x = 99,408.49 × 40,202.00
  4. Step 4: Simplify right side
    72,030.14x = 3,996,419,517.43
  5. Step 5: Solve for x
    x = 3,996,419,517.43/72,030.14
  6. Step 6: Final answer
    x = 55,482.60

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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.