Home / 51,402.61-70,908.24-31,265.65

Finding the Fourth Proportional to 51,402.61, 70,908.24 and 31,265.65

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Solution

The fourth proportional to 51,402.61, 70,908.24 and 31,265.65 is: 43,129.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,402.61 : 70,908.24 = 31,265.65 : x
  2. Step 2: Convert to fraction form
    51,402.61/70,908.24 = 31,265.65/x
  3. Step 3: Cross multiply
    51,402.61x = 70,908.24 × 31,265.65
  4. Step 4: Simplify right side
    51,402.61x = 2,216,992,213.96
  5. Step 5: Solve for x
    x = 2,216,992,213.96/51,402.61
  6. Step 6: Final answer
    x = 43,129.95

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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.