Home / 53,326.16-79,990.56-13,885.04

Finding the Fourth Proportional to 53,326.16, 79,990.56 and 13,885.04

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Solution

The fourth proportional to 53,326.16, 79,990.56 and 13,885.04 is: 20,827.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,326.16 : 79,990.56 = 13,885.04 : x
  2. Step 2: Convert to fraction form
    53,326.16/79,990.56 = 13,885.04/x
  3. Step 3: Cross multiply
    53,326.16x = 79,990.56 × 13,885.04
  4. Step 4: Simplify right side
    53,326.16x = 1,110,672,125.22
  5. Step 5: Solve for x
    x = 1,110,672,125.22/53,326.16
  6. Step 6: Final answer
    x = 20,827.90

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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.