Home / 74,947.61-103,424.45-40,955.55

Finding the Fourth Proportional to 74,947.61, 103,424.45 and 40,955.55

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Solution

The fourth proportional to 74,947.61, 103,424.45 and 40,955.55 is: 56,516.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,947.61 : 103,424.45 = 40,955.55 : x
  2. Step 2: Convert to fraction form
    74,947.61/103,424.45 = 40,955.55/x
  3. Step 3: Cross multiply
    74,947.61x = 103,424.45 × 40,955.55
  4. Step 4: Simplify right side
    74,947.61x = 4,235,805,028.42
  5. Step 5: Solve for x
    x = 4,235,805,028.42/74,947.61
  6. Step 6: Final answer
    x = 56,516.88

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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.