Home / 72,373.14-99,869.49-40,536.90

Finding the Fourth Proportional to 72,373.14, 99,869.49 and 40,536.90

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Solution

The fourth proportional to 72,373.14, 99,869.49 and 40,536.90 is: 55,937.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,373.14 : 99,869.49 = 40,536.90 : x
  2. Step 2: Convert to fraction form
    72,373.14/99,869.49 = 40,536.90/x
  3. Step 3: Cross multiply
    72,373.14x = 99,869.49 × 40,536.90
  4. Step 4: Simplify right side
    72,373.14x = 4,048,399,529.18
  5. Step 5: Solve for x
    x = 4,048,399,529.18/72,373.14
  6. Step 6: Final answer
    x = 55,937.87

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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.