Home / 74,403.64-102,675.90-42,580.36

Finding the Fourth Proportional to 74,403.64, 102,675.90 and 42,580.36

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Solution

The fourth proportional to 74,403.64, 102,675.90 and 42,580.36 is: 58,760.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,403.64 : 102,675.90 = 42,580.36 : x
  2. Step 2: Convert to fraction form
    74,403.64/102,675.90 = 42,580.36/x
  3. Step 3: Cross multiply
    74,403.64x = 102,675.90 × 42,580.36
  4. Step 4: Simplify right side
    74,403.64x = 4,371,976,785.32
  5. Step 5: Solve for x
    x = 4,371,976,785.32/74,403.64
  6. Step 6: Final answer
    x = 58,760.25

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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.