Home / 51,166.80-70,612.37-28,505.78

Finding the Fourth Proportional to 51,166.80, 70,612.37 and 28,505.78

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Solution

The fourth proportional to 51,166.80, 70,612.37 and 28,505.78 is: 39,339.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,166.80 : 70,612.37 = 28,505.78 : x
  2. Step 2: Convert to fraction form
    51,166.80/70,612.37 = 28,505.78/x
  3. Step 3: Cross multiply
    51,166.80x = 70,612.37 × 28,505.78
  4. Step 4: Simplify right side
    51,166.80x = 2,012,860,825.40
  5. Step 5: Solve for x
    x = 2,012,860,825.40/51,166.80
  6. Step 6: Final answer
    x = 39,339.19

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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.