Home / 42,450.04-58,540.08-28,103.32

Finding the Fourth Proportional to 42,450.04, 58,540.08 and 28,103.32

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Solution

The fourth proportional to 42,450.04, 58,540.08 and 28,103.32 is: 38,755.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,450.04 : 58,540.08 = 28,103.32 : x
  2. Step 2: Convert to fraction form
    42,450.04/58,540.08 = 28,103.32/x
  3. Step 3: Cross multiply
    42,450.04x = 58,540.08 × 28,103.32
  4. Step 4: Simplify right side
    42,450.04x = 1,645,170,601.07
  5. Step 5: Solve for x
    x = 1,645,170,601.07/42,450.04
  6. Step 6: Final answer
    x = 38,755.45

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Double scale
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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.