Home / 90,420.03-124,778.34-50,133.87

Finding the Fourth Proportional to 90,420.03, 124,778.34 and 50,133.87

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Solution

The fourth proportional to 90,420.03, 124,778.34 and 50,133.87 is: 69,184.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,420.03 : 124,778.34 = 50,133.87 : x
  2. Step 2: Convert to fraction form
    90,420.03/124,778.34 = 50,133.87/x
  3. Step 3: Cross multiply
    90,420.03x = 124,778.34 × 50,133.87
  4. Step 4: Simplify right side
    90,420.03x = 6,255,621,076.38
  5. Step 5: Solve for x
    x = 6,255,621,076.38/90,420.03
  6. Step 6: Final answer
    x = 69,184.02

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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.