Home / 65,407.20-90,262.13-37,112.82

Finding the Fourth Proportional to 65,407.20, 90,262.13 and 37,112.82

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Solution

The fourth proportional to 65,407.20, 90,262.13 and 37,112.82 is: 51,215.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,407.20 : 90,262.13 = 37,112.82 : x
  2. Step 2: Convert to fraction form
    65,407.20/90,262.13 = 37,112.82/x
  3. Step 3: Cross multiply
    65,407.20x = 90,262.13 × 37,112.82
  4. Step 4: Simplify right side
    65,407.20x = 3,349,881,997.94
  5. Step 5: Solve for x
    x = 3,349,881,997.94/65,407.20
  6. Step 6: Final answer
    x = 51,215.80

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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.