Home / 90,315.69-124,638.39-50,033.21

Finding the Fourth Proportional to 90,315.69, 124,638.39 and 50,033.21

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Solution

The fourth proportional to 90,315.69, 124,638.39 and 50,033.21 is: 69,047.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,315.69 : 124,638.39 = 50,033.21 : x
  2. Step 2: Convert to fraction form
    90,315.69/124,638.39 = 50,033.21/x
  3. Step 3: Cross multiply
    90,315.69x = 124,638.39 × 50,033.21
  4. Step 4: Simplify right side
    90,315.69x = 6,236,058,117.74
  5. Step 5: Solve for x
    x = 6,236,058,117.74/90,315.69
  6. Step 6: Final answer
    x = 69,047.34

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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.