Home / 74,470.32-111,761.64-39,417.84

Finding the Fourth Proportional to 74,470.32, 111,761.64 and 39,417.84

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Solution

The fourth proportional to 74,470.32, 111,761.64 and 39,417.84 is: 59,156.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,470.32 : 111,761.64 = 39,417.84 : x
  2. Step 2: Convert to fraction form
    74,470.32/111,761.64 = 39,417.84/x
  3. Step 3: Cross multiply
    74,470.32x = 111,761.64 × 39,417.84
  4. Step 4: Simplify right side
    74,470.32x = 4,405,402,443.66
  5. Step 5: Solve for x
    x = 4,405,402,443.66/74,470.32
  6. Step 6: Final answer
    x = 59,156.49

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.