Home / 53,580.97-73,938.12-30,920.90

Finding the Fourth Proportional to 53,580.97, 73,938.12 and 30,920.90

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Solution

The fourth proportional to 53,580.97, 73,938.12 and 30,920.90 is: 42,668.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,580.97 : 73,938.12 = 30,920.90 : x
  2. Step 2: Convert to fraction form
    53,580.97/73,938.12 = 30,920.90/x
  3. Step 3: Cross multiply
    53,580.97x = 73,938.12 × 30,920.90
  4. Step 4: Simplify right side
    53,580.97x = 2,286,233,214.71
  5. Step 5: Solve for x
    x = 2,286,233,214.71/53,580.97
  6. Step 6: Final answer
    x = 42,668.75

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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.