Home / 90,302.27-124,631.12-51,540.12

Finding the Fourth Proportional to 90,302.27, 124,631.12 and 51,540.12

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Solution

The fourth proportional to 90,302.27, 124,631.12 and 51,540.12 is: 71,133.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,302.27 : 124,631.12 = 51,540.12 : x
  2. Step 2: Convert to fraction form
    90,302.27/124,631.12 = 51,540.12/x
  3. Step 3: Cross multiply
    90,302.27x = 124,631.12 × 51,540.12
  4. Step 4: Simplify right side
    90,302.27x = 6,423,503,009.38
  5. Step 5: Solve for x
    x = 6,423,503,009.38/90,302.27
  6. Step 6: Final answer
    x = 71,133.35

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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.