Home / 74,784.17-112,118.73-38,721.98

Finding the Fourth Proportional to 74,784.17, 112,118.73 and 38,721.98

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Solution

The fourth proportional to 74,784.17, 112,118.73 and 38,721.98 is: 58,053.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,784.17 : 112,118.73 = 38,721.98 : x
  2. Step 2: Convert to fraction form
    74,784.17/112,118.73 = 38,721.98/x
  3. Step 3: Cross multiply
    74,784.17x = 112,118.73 × 38,721.98
  4. Step 4: Simplify right side
    74,784.17x = 4,341,458,660.09
  5. Step 5: Solve for x
    x = 4,341,458,660.09/74,784.17
  6. Step 6: Final answer
    x = 58,053.18

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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.