Home / 74,975.30-112,407.38-45,386.13

Finding the Fourth Proportional to 74,975.30, 112,407.38 and 45,386.13

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Solution

The fourth proportional to 74,975.30, 112,407.38 and 45,386.13 is: 68,045.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,975.30 : 112,407.38 = 45,386.13 : x
  2. Step 2: Convert to fraction form
    74,975.30/112,407.38 = 45,386.13/x
  3. Step 3: Cross multiply
    74,975.30x = 112,407.38 × 45,386.13
  4. Step 4: Simplify right side
    74,975.30x = 5,101,735,961.64
  5. Step 5: Solve for x
    x = 5,101,735,961.64/74,975.30
  6. Step 6: Final answer
    x = 68,045.56

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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.