Home / 90,323.34-124,614.12-53,999.56

Finding the Fourth Proportional to 90,323.34, 124,614.12 and 53,999.56

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Solution

The fourth proportional to 90,323.34, 124,614.12 and 53,999.56 is: 74,500.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,323.34 : 124,614.12 = 53,999.56 : x
  2. Step 2: Convert to fraction form
    90,323.34/124,614.12 = 53,999.56/x
  3. Step 3: Cross multiply
    90,323.34x = 124,614.12 × 53,999.56
  4. Step 4: Simplify right side
    90,323.34x = 6,729,107,649.79
  5. Step 5: Solve for x
    x = 6,729,107,649.79/90,323.34
  6. Step 6: Final answer
    x = 74,500.21

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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.