Home / 74,772.08-103,182-42,918.56

Finding the Fourth Proportional to 74,772.08, 103,182 and 42,918.56

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Solution

The fourth proportional to 74,772.08, 103,182 and 42,918.56 is: 59,225.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,772.08 : 103,182 = 42,918.56 : x
  2. Step 2: Convert to fraction form
    74,772.08/103,182 = 42,918.56/x
  3. Step 3: Cross multiply
    74,772.08x = 103,182 × 42,918.56
  4. Step 4: Simplify right side
    74,772.08x = 4,428,422,857.92
  5. Step 5: Solve for x
    x = 4,428,422,857.92/74,772.08
  6. Step 6: Final answer
    x = 59,225.62

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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.