Home / 74,986.17-112,507.34-38,940.16

Finding the Fourth Proportional to 74,986.17, 112,507.34 and 38,940.16

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Solution

The fourth proportional to 74,986.17, 112,507.34 and 38,940.16 is: 58,424.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,986.17 : 112,507.34 = 38,940.16 : x
  2. Step 2: Convert to fraction form
    74,986.17/112,507.34 = 38,940.16/x
  3. Step 3: Cross multiply
    74,986.17x = 112,507.34 × 38,940.16
  4. Step 4: Simplify right side
    74,986.17x = 4,381,053,344.81
  5. Step 5: Solve for x
    x = 4,381,053,344.81/74,986.17
  6. Step 6: Final answer
    x = 58,424.82

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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.