Home / 74,498.40-102,859.20-50,644.80

Finding the Fourth Proportional to 74,498.40, 102,859.20 and 50,644.80

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Solution

The fourth proportional to 74,498.40, 102,859.20 and 50,644.80 is: 69,924.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,498.40 : 102,859.20 = 50,644.80 : x
  2. Step 2: Convert to fraction form
    74,498.40/102,859.20 = 50,644.80/x
  3. Step 3: Cross multiply
    74,498.40x = 102,859.20 × 50,644.80
  4. Step 4: Simplify right side
    74,498.40x = 5,209,283,612.16
  5. Step 5: Solve for x
    x = 5,209,283,612.16/74,498.40
  6. Step 6: Final answer
    x = 69,924.77

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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.