Home / 72,114.14-99,519.10-40,283.10

Finding the Fourth Proportional to 72,114.14, 99,519.10 and 40,283.10

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Solution

The fourth proportional to 72,114.14, 99,519.10 and 40,283.10 is: 55,591.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,114.14 : 99,519.10 = 40,283.10 : x
  2. Step 2: Convert to fraction form
    72,114.14/99,519.10 = 40,283.10/x
  3. Step 3: Cross multiply
    72,114.14x = 99,519.10 × 40,283.10
  4. Step 4: Simplify right side
    72,114.14x = 4,008,937,756.50
  5. Step 5: Solve for x
    x = 4,008,937,756.50/72,114.14
  6. Step 6: Final answer
    x = 55,591.56

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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.