Home / 74,741.40-112,109.67-30,355.02

Finding the Fourth Proportional to 74,741.40, 112,109.67 and 30,355.02

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Solution

The fourth proportional to 74,741.40, 112,109.67 and 30,355.02 is: 45,531.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,741.40 : 112,109.67 = 30,355.02 : x
  2. Step 2: Convert to fraction form
    74,741.40/112,109.67 = 30,355.02/x
  3. Step 3: Cross multiply
    74,741.40x = 112,109.67 × 30,355.02
  4. Step 4: Simplify right side
    74,741.40x = 3,403,091,275.04
  5. Step 5: Solve for x
    x = 3,403,091,275.04/74,741.40
  6. Step 6: Final answer
    x = 45,531.54

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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.