Home / 74,931.40-103,400.34-41,396.68

Finding the Fourth Proportional to 74,931.40, 103,400.34 and 41,396.68

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Solution

The fourth proportional to 74,931.40, 103,400.34 and 41,396.68 is: 57,124.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,931.40 : 103,400.34 = 41,396.68 : x
  2. Step 2: Convert to fraction form
    74,931.40/103,400.34 = 41,396.68/x
  3. Step 3: Cross multiply
    74,931.40x = 103,400.34 × 41,396.68
  4. Step 4: Simplify right side
    74,931.40x = 4,280,430,786.87
  5. Step 5: Solve for x
    x = 4,280,430,786.87/74,931.40
  6. Step 6: Final answer
    x = 57,124.66

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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.