Home / 90,390.90-124,726.34-50,104.65

Finding the Fourth Proportional to 90,390.90, 124,726.34 and 50,104.65

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Solution

The fourth proportional to 90,390.90, 124,726.34 and 50,104.65 is: 69,137.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,390.90 : 124,726.34 = 50,104.65 : x
  2. Step 2: Convert to fraction form
    90,390.90/124,726.34 = 50,104.65/x
  3. Step 3: Cross multiply
    90,390.90x = 124,726.34 × 50,104.65
  4. Step 4: Simplify right side
    90,390.90x = 6,249,369,360.96
  5. Step 5: Solve for x
    x = 6,249,369,360.96/90,390.90
  6. Step 6: Final answer
    x = 69,137.15

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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.