Home / 53,619.24-74,005.08-30,972.90

Finding the Fourth Proportional to 53,619.24, 74,005.08 and 30,972.90

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Solution

The fourth proportional to 53,619.24, 74,005.08 and 30,972.90 is: 42,748.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,619.24 : 74,005.08 = 30,972.90 : x
  2. Step 2: Convert to fraction form
    53,619.24/74,005.08 = 30,972.90/x
  3. Step 3: Cross multiply
    53,619.24x = 74,005.08 × 30,972.90
  4. Step 4: Simplify right side
    53,619.24x = 2,292,151,942.33
  5. Step 5: Solve for x
    x = 2,292,151,942.33/53,619.24
  6. Step 6: Final answer
    x = 42,748.68

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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.