Home / 49,455.40-74,110.20-42,019.60

Finding the Fourth Proportional to 49,455.40, 74,110.20 and 42,019.60

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Solution

The fourth proportional to 49,455.40, 74,110.20 and 42,019.60 is: 62,967.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,455.40 : 74,110.20 = 42,019.60 : x
  2. Step 2: Convert to fraction form
    49,455.40/74,110.20 = 42,019.60/x
  3. Step 3: Cross multiply
    49,455.40x = 74,110.20 × 42,019.60
  4. Step 4: Simplify right side
    49,455.40x = 3,114,080,959.92
  5. Step 5: Solve for x
    x = 3,114,080,959.92/49,455.40
  6. Step 6: Final answer
    x = 62,967.46

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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.