Home / 51,083.76-70,490.07-28,419.15

Finding the Fourth Proportional to 51,083.76, 70,490.07 and 28,419.15

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Solution

The fourth proportional to 51,083.76, 70,490.07 and 28,419.15 is: 39,215.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,083.76 : 70,490.07 = 28,419.15 : x
  2. Step 2: Convert to fraction form
    51,083.76/70,490.07 = 28,419.15/x
  3. Step 3: Cross multiply
    51,083.76x = 70,490.07 × 28,419.15
  4. Step 4: Simplify right side
    51,083.76x = 2,003,267,872.84
  5. Step 5: Solve for x
    x = 2,003,267,872.84/51,083.76
  6. Step 6: Final answer
    x = 39,215.36

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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.