Home / 48,106.05-72,128.51-42,194.81

Finding the Fourth Proportional to 48,106.05, 72,128.51 and 42,194.81

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Solution

The fourth proportional to 48,106.05, 72,128.51 and 42,194.81 is: 63,265.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,106.05 : 72,128.51 = 42,194.81 : x
  2. Step 2: Convert to fraction form
    48,106.05/72,128.51 = 42,194.81/x
  3. Step 3: Cross multiply
    48,106.05x = 72,128.51 × 42,194.81
  4. Step 4: Simplify right side
    48,106.05x = 3,043,448,361.65
  5. Step 5: Solve for x
    x = 3,043,448,361.65/48,106.05
  6. Step 6: Final answer
    x = 63,265.40

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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.