Home / 74,777.48-103,329.78-71,132.84

Finding the Fourth Proportional to 74,777.48, 103,329.78 and 71,132.84

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Solution

The fourth proportional to 74,777.48, 103,329.78 and 71,132.84 is: 98,293.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,777.48 : 103,329.78 = 71,132.84 : x
  2. Step 2: Convert to fraction form
    74,777.48/103,329.78 = 71,132.84/x
  3. Step 3: Cross multiply
    74,777.48x = 103,329.78 × 71,132.84
  4. Step 4: Simplify right side
    74,777.48x = 7,350,140,707.98
  5. Step 5: Solve for x
    x = 7,350,140,707.98/74,777.48
  6. Step 6: Final answer
    x = 98,293.51

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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.