Home / 90,318.64-124,638.16-50,031.56

Finding the Fourth Proportional to 90,318.64, 124,638.16 and 50,031.56

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Solution

The fourth proportional to 90,318.64, 124,638.16 and 50,031.56 is: 69,042.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,318.64 : 124,638.16 = 50,031.56 : x
  2. Step 2: Convert to fraction form
    90,318.64/124,638.16 = 50,031.56/x
  3. Step 3: Cross multiply
    90,318.64x = 124,638.16 × 50,031.56
  4. Step 4: Simplify right side
    90,318.64x = 6,235,841,580.33
  5. Step 5: Solve for x
    x = 6,235,841,580.33/90,318.64
  6. Step 6: Final answer
    x = 69,042.69

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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.