Home / 75,160.48-103,720.76-43,328.72

Finding the Fourth Proportional to 75,160.48, 103,720.76 and 43,328.72

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Solution

The fourth proportional to 75,160.48, 103,720.76 and 43,328.72 is: 59,793.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,160.48 : 103,720.76 = 43,328.72 : x
  2. Step 2: Convert to fraction form
    75,160.48/103,720.76 = 43,328.72/x
  3. Step 3: Cross multiply
    75,160.48x = 103,720.76 × 43,328.72
  4. Step 4: Simplify right side
    75,160.48x = 4,494,087,768.23
  5. Step 5: Solve for x
    x = 4,494,087,768.23/75,160.48
  6. Step 6: Final answer
    x = 59,793.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.