Home / 90,431.10-124,795.62-50,142.51

Finding the Fourth Proportional to 90,431.10, 124,795.62 and 50,142.51

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Solution

The fourth proportional to 90,431.10, 124,795.62 and 50,142.51 is: 69,197.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,431.10 : 124,795.62 = 50,142.51 : x
  2. Step 2: Convert to fraction form
    90,431.10/124,795.62 = 50,142.51/x
  3. Step 3: Cross multiply
    90,431.10x = 124,795.62 × 50,142.51
  4. Step 4: Simplify right side
    90,431.10x = 6,257,565,623.81
  5. Step 5: Solve for x
    x = 6,257,565,623.81/90,431.10
  6. Step 6: Final answer
    x = 69,197.05

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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.