Home / 71,900.19-99,228.24-40,064.76

Finding the Fourth Proportional to 71,900.19, 99,228.24 and 40,064.76

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Solution

The fourth proportional to 71,900.19, 99,228.24 and 40,064.76 is: 55,292.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,900.19 : 99,228.24 = 40,064.76 : x
  2. Step 2: Convert to fraction form
    71,900.19/99,228.24 = 40,064.76/x
  3. Step 3: Cross multiply
    71,900.19x = 99,228.24 × 40,064.76
  4. Step 4: Simplify right side
    71,900.19x = 3,975,555,620.82
  5. Step 5: Solve for x
    x = 3,975,555,620.82/71,900.19
  6. Step 6: Final answer
    x = 55,292.70

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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.