Home / 53,621.90-74,001.73-30,961.85

Finding the Fourth Proportional to 53,621.90, 74,001.73 and 30,961.85

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Solution

The fourth proportional to 53,621.90, 74,001.73 and 30,961.85 is: 42,729.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,621.90 : 74,001.73 = 30,961.85 : x
  2. Step 2: Convert to fraction form
    53,621.90/74,001.73 = 30,961.85/x
  3. Step 3: Cross multiply
    53,621.90x = 74,001.73 × 30,961.85
  4. Step 4: Simplify right side
    53,621.90x = 2,291,230,410.20
  5. Step 5: Solve for x
    x = 2,291,230,410.20/53,621.90
  6. Step 6: Final answer
    x = 42,729.38

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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.