Home / 74,248.61-111,431.24-40,991.63

Finding the Fourth Proportional to 74,248.61, 111,431.24 and 40,991.63

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Solution

The fourth proportional to 74,248.61, 111,431.24 and 40,991.63 is: 61,519.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,248.61 : 111,431.24 = 40,991.63 : x
  2. Step 2: Convert to fraction form
    74,248.61/111,431.24 = 40,991.63/x
  3. Step 3: Cross multiply
    74,248.61x = 111,431.24 × 40,991.63
  4. Step 4: Simplify right side
    74,248.61x = 4,567,748,160.52
  5. Step 5: Solve for x
    x = 4,567,748,160.52/74,248.61
  6. Step 6: Final answer
    x = 61,519.65

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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.