Home / 74,520.56-102,852.97-42,710.78

Finding the Fourth Proportional to 74,520.56, 102,852.97 and 42,710.78

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Solution

The fourth proportional to 74,520.56, 102,852.97 and 42,710.78 is: 58,949.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,520.56 : 102,852.97 = 42,710.78 : x
  2. Step 2: Convert to fraction form
    74,520.56/102,852.97 = 42,710.78/x
  3. Step 3: Cross multiply
    74,520.56x = 102,852.97 × 42,710.78
  4. Step 4: Simplify right side
    74,520.56x = 4,392,929,952.97
  5. Step 5: Solve for x
    x = 4,392,929,952.97/74,520.56
  6. Step 6: Final answer
    x = 58,949.24

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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.