Home / 53,005.40-79,507.54-13,562.20

Finding the Fourth Proportional to 53,005.40, 79,507.54 and 13,562.20

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Solution

The fourth proportional to 53,005.40, 79,507.54 and 13,562.20 is: 20,343.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,005.40 : 79,507.54 = 13,562.20 : x
  2. Step 2: Convert to fraction form
    53,005.40/79,507.54 = 13,562.20/x
  3. Step 3: Cross multiply
    53,005.40x = 79,507.54 × 13,562.20
  4. Step 4: Simplify right side
    53,005.40x = 1,078,297,158.99
  5. Step 5: Solve for x
    x = 1,078,297,158.99/53,005.40
  6. Step 6: Final answer
    x = 20,343.16

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1.5x scale

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.