Home / 42,078.13-58,087.14-36,312.64

Finding the Fourth Proportional to 42,078.13, 58,087.14 and 36,312.64

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Solution

The fourth proportional to 42,078.13, 58,087.14 and 36,312.64 is: 50,128.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,078.13 : 58,087.14 = 36,312.64 : x
  2. Step 2: Convert to fraction form
    42,078.13/58,087.14 = 36,312.64/x
  3. Step 3: Cross multiply
    42,078.13x = 58,087.14 × 36,312.64
  4. Step 4: Simplify right side
    42,078.13x = 2,109,297,403.45
  5. Step 5: Solve for x
    x = 2,109,297,403.45/42,078.13
  6. Step 6: Final answer
    x = 50,128.12

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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.