Home / 51,401.61-70,906.86-31,264.65

Finding the Fourth Proportional to 51,401.61, 70,906.86 and 31,264.65

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Solution

The fourth proportional to 51,401.61, 70,906.86 and 31,264.65 is: 43,128.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,401.61 : 70,906.86 = 31,264.65 : x
  2. Step 2: Convert to fraction form
    51,401.61/70,906.86 = 31,264.65/x
  3. Step 3: Cross multiply
    51,401.61x = 70,906.86 × 31,264.65
  4. Step 4: Simplify right side
    51,401.61x = 2,216,878,160.50
  5. Step 5: Solve for x
    x = 2,216,878,160.50/51,401.61
  6. Step 6: Final answer
    x = 43,128.57

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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.