Home / 74,268.98-102,489.38-42,435.82

Finding the Fourth Proportional to 74,268.98, 102,489.38 and 42,435.82

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Solution

The fourth proportional to 74,268.98, 102,489.38 and 42,435.82 is: 58,560.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,268.98 : 102,489.38 = 42,435.82 : x
  2. Step 2: Convert to fraction form
    74,268.98/102,489.38 = 42,435.82/x
  3. Step 3: Cross multiply
    74,268.98x = 102,489.38 × 42,435.82
  4. Step 4: Simplify right side
    74,268.98x = 4,349,220,881.59
  5. Step 5: Solve for x
    x = 4,349,220,881.59/74,268.98
  6. Step 6: Final answer
    x = 58,560.40

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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.