Home / 74,947.68-103,427.28-43,122.72

Finding the Fourth Proportional to 74,947.68, 103,427.28 and 43,122.72

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Solution

The fourth proportional to 74,947.68, 103,427.28 and 43,122.72 is: 59,509.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,947.68 : 103,427.28 = 43,122.72 : x
  2. Step 2: Convert to fraction form
    74,947.68/103,427.28 = 43,122.72/x
  3. Step 3: Cross multiply
    74,947.68x = 103,427.28 × 43,122.72
  4. Step 4: Simplify right side
    74,947.68x = 4,460,065,635.80
  5. Step 5: Solve for x
    x = 4,460,065,635.80/74,947.68
  6. Step 6: Final answer
    x = 59,509.06

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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.