Home / 90,029.75-124,237.72-49,742.65

Finding the Fourth Proportional to 90,029.75, 124,237.72 and 49,742.65

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Solution

The fourth proportional to 90,029.75, 124,237.72 and 49,742.65 is: 68,643.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,029.75 : 124,237.72 = 49,742.65 : x
  2. Step 2: Convert to fraction form
    90,029.75/124,237.72 = 49,742.65/x
  3. Step 3: Cross multiply
    90,029.75x = 124,237.72 × 49,742.65
  4. Step 4: Simplify right side
    90,029.75x = 6,179,912,987.81
  5. Step 5: Solve for x
    x = 6,179,912,987.81/90,029.75
  6. Step 6: Final answer
    x = 68,643.01

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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.