Home / 90,030.64-124,231.48-49,741.92

Finding the Fourth Proportional to 90,030.64, 124,231.48 and 49,741.92

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Solution

The fourth proportional to 90,030.64, 124,231.48 and 49,741.92 is: 68,637.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,030.64 : 124,231.48 = 49,741.92 : x
  2. Step 2: Convert to fraction form
    90,030.64/124,231.48 = 49,741.92/x
  3. Step 3: Cross multiply
    90,030.64x = 124,231.48 × 49,741.92
  4. Step 4: Simplify right side
    90,030.64x = 6,179,512,339.64
  5. Step 5: Solve for x
    x = 6,179,512,339.64/90,030.64
  6. Step 6: Final answer
    x = 68,637.88

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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.