Home / 51,238.71-76,348.70-45,649.10

Finding the Fourth Proportional to 51,238.71, 76,348.70 and 45,649.10

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Solution

The fourth proportional to 51,238.71, 76,348.70 and 45,649.10 is: 68,019.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,238.71 : 76,348.70 = 45,649.10 : x
  2. Step 2: Convert to fraction form
    51,238.71/76,348.70 = 45,649.10/x
  3. Step 3: Cross multiply
    51,238.71x = 76,348.70 × 45,649.10
  4. Step 4: Simplify right side
    51,238.71x = 3,485,249,288.67
  5. Step 5: Solve for x
    x = 3,485,249,288.67/51,238.71
  6. Step 6: Final answer
    x = 68,019.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.