Home / 48,106.30-72,128.88-42,195.06

Finding the Fourth Proportional to 48,106.30, 72,128.88 and 42,195.06

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Solution

The fourth proportional to 48,106.30, 72,128.88 and 42,195.06 is: 63,265.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,106.30 : 72,128.88 = 42,195.06 : x
  2. Step 2: Convert to fraction form
    48,106.30/72,128.88 = 42,195.06/x
  3. Step 3: Cross multiply
    48,106.30x = 72,128.88 × 42,195.06
  4. Step 4: Simplify right side
    48,106.30x = 3,043,482,164.18
  5. Step 5: Solve for x
    x = 3,043,482,164.18/48,106.30
  6. Step 6: Final answer
    x = 63,265.77

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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.