Home / 53,215.22-73,443.65-30,561.30

Finding the Fourth Proportional to 53,215.22, 73,443.65 and 30,561.30

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Solution

The fourth proportional to 53,215.22, 73,443.65 and 30,561.30 is: 42,178.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,215.22 : 73,443.65 = 30,561.30 : x
  2. Step 2: Convert to fraction form
    53,215.22/73,443.65 = 30,561.30/x
  3. Step 3: Cross multiply
    53,215.22x = 73,443.65 × 30,561.30
  4. Step 4: Simplify right side
    53,215.22x = 2,244,533,420.75
  5. Step 5: Solve for x
    x = 2,244,533,420.75/53,215.22
  6. Step 6: Final answer
    x = 42,178.41

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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.