Home / 50,018.40-74,808.90-42,145.20

Finding the Fourth Proportional to 50,018.40, 74,808.90 and 42,145.20

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Solution

The fourth proportional to 50,018.40, 74,808.90 and 42,145.20 is: 63,033.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,018.40 : 74,808.90 = 42,145.20 : x
  2. Step 2: Convert to fraction form
    50,018.40/74,808.90 = 42,145.20/x
  3. Step 3: Cross multiply
    50,018.40x = 74,808.90 × 42,145.20
  4. Step 4: Simplify right side
    50,018.40x = 3,152,836,052.28
  5. Step 5: Solve for x
    x = 3,152,836,052.28/50,018.40
  6. Step 6: Final answer
    x = 63,033.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.