Home / 75,430.40-113,145.60-31,042.40

Finding the Fourth Proportional to 75,430.40, 113,145.60 and 31,042.40

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Solution

The fourth proportional to 75,430.40, 113,145.60 and 31,042.40 is: 46,563.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,430.40 : 113,145.60 = 31,042.40 : x
  2. Step 2: Convert to fraction form
    75,430.40/113,145.60 = 31,042.40/x
  3. Step 3: Cross multiply
    75,430.40x = 113,145.60 × 31,042.40
  4. Step 4: Simplify right side
    75,430.40x = 3,512,310,973.44
  5. Step 5: Solve for x
    x = 3,512,310,973.44/75,430.40
  6. Step 6: Final answer
    x = 46,563.60

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1.5x scale

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.